研究者データベース

薮谷 智規ヤブタニ トモキ

所属部署名紙産業イノベーションセンター
職名教授
Last Updated :2020/05/31

研究者基本情報

基本情報

氏名

  • 氏名

    薮谷 智規
  • 氏名(カナ)

    ヤブタニ トモキ

基本情報

所属

所属・職名

  • 部署

    社会連携推進機構 紙産業イノベーションセンター
  • 職名

    教授

学歴等

学歴

  • 1998年04月 - 2000年10月, 名古屋大学, 工学研究科博士後期課程
  • 1996年04月 - 1998年03月, 名古屋大学, 工学研究科博士前期課程
  • 1992年04月 - 1996年03月, 名古屋大学, 工学部

学位

  • 博士(工学)

その他基本情報

所属学協会

  • プラズマ分光分析研究会
  • ポーラログラフィー学会
  • 日本海水学会
  • 日本化学会
  • 日本分析化学会

委員歴

  • 2017年03月 - 現在, 日本分析化学会, 分析化学誌編集委員
  • 2015年04月 - 現在, 日本海水学会, 日本海水学会誌編集委員
  • 2015年03月 - 現在, 日本分析化学会, 中国四国支部 常任幹事
  • 2013年04月 - 現在, 日本海水学会, 若手会 幹事
  • 2010年04月 - 現在, 日本ポーラログラフィー学会, 評議員
  • 2016年03月 - 2020年03月, 日本分析化学会, Analytical Sciences 編集委員
  • 2013年04月 - 2017年03月, 日本化学会, 化学と教育 編集委員

経歴

  • 2014年11月 - , 愛媛大学 社会連携推進機構 紙産業イノベーションセンター 教授
  • 2011年11月 - 2014年10月, 徳島大学 大学院 ソシオテクノサイエンス研究部 准教授
  • 2006年04月 - 2011年10月, 徳島大学 大学院 ソシオテクノサイエンス研究部 講師
  • 2006年01月 - 2006年03月, 徳島大学 工学部 講師
  • 2000年10月 - 2005年12月, 徳島大学 工学部 助手

研究活動情報

研究分野等

研究分野

  • ナノテク・材料, 分析化学
  • 環境・農学, 環境材料、リサイクル技術
  • 環境・農学, 環境材料、リサイクル技術
  • 環境・農学, 環境負荷低減技術、保全修復技術
  • ナノテク・材料, グリーンサステイナブルケミストリー、環境化学

研究キーワード

  • バイオセンサー
  • 資源回収
  • 機能性薄膜
  • レアメタル
  • リサイクル
  • 環境分析
  • 環境化学
  • 分析化学
  • Analytical Chemistry

著書・発表論文等

論文

  • タンパク質結晶成長場及びX線回折実験用試料固定材としてのトラックエッチドメンブランフィルターの利用, 山田 洋平, 鈴田 崇仁, 岡田 英理子, 髙栁 俊夫, 鈴木 良尚, 村井 啓一郎, 薮谷 智規, 分析化学, 分析化学, 2019年09月, [査読有り], 10.2116/bunsekikagaku.68.639
  • Metallomics., Tomoki Yabutani, Analytical Sciences, Analytical Sciences, 2019年09月, 10.2116/analsci.highlights1907
  • Effects of solvents on the crystal structure of cross-linked lysozyme crystals, Yohei Yamada, Shota Toyama, Tomoki Yabutani, International Journal of Modern Physics B, International Journal of Modern Physics B, 2018年07月, [査読有り], 10.1142/S0217979218400416
  • Effect of leaching conditions on the elution of metals from denitration catalyst wastes, Tomoki Yabutani, Takamasa Nakamura, Toshio Takayanagi, Yohei Yamada, International Journal of Modern Physics B, International Journal of Modern Physics B, 2018年07月, [査読有り], 10.1142/S0217979218400623
  • Copper Speciation for Natural Water by On-site Sample Treatment/Solid-phase Extraction/Inductively Coupled Plasma Mass Spectrometry, Tomoki Yabutani, Shingo Kishibe, Miki Kamimura, Kosuke Nozoe, Yohei Yamada, Toshio Takayanagi, Analytical sciences, Analytical sciences, 2018年06月, [査読有り], 0910-6340, 10.2116/analsci.18SBP08
  • Determination of the Acid-Base Dissociation Constant of Acid-Degradable Hexamethylenetetramine by Capillary Zone Electrophoresis, Toshio Takayanagi, Natsumi Shimakami, Masashi Kurashina, Hitoshi Mizuguchi, Tomoki Yabutani, Analytical Sciences, Analytical Sciences, 2016年12月, [査読有り], 1348-2246, 10.2116/analsci.32.1327
  • Determination of the Acid-Base Dissociation Constant of Acid-Degradable Hexamethylenetetramine by Capillary Zone Electrophoresis, Toshio Takayanagi, Natsumi Shimakami, Masashi Kurashina, Hitoshi Mizuguchi, Tomoki Yabutani, Analytical Sciences, Analytical Sciences, 2016年12月, [査読有り], 0910-6340, 10.2116/analsci.32.1327
  • Determination of Acid Dissociation Constant of Pravastatin under Degraded Conditions by Capillary Zone Electrophoresis., Takayanagi T, Amiya M, Shimakami N, Yabutani T, Analytical Sciences, Analytical Sciences, 2015年11月, [査読有り], 0910-6340, 10.2116/analsci.31.1193
  • Determination of trace elements in Ethiopian, Vietnamese, and Japanese women using high-resolution IC-PMS., Tekeste Z, Amare B, Asfaw F, Fantahun B, van Nguyen N, Nishikawa T, Yabutani T, Okayasu T, Ota F, Kassu A, Nutrition, Nutrition, 2015年10月, [査読有り], 0899-9007, 10.1016/j.nut.2015.04.021
  • Leaching of metals from steel samples in peracetic acid, Tomoki Yabutani, Takamasa Nakamura, Toshio Takayabagi, Modern Physics Letters B, Modern Physics Letters B, 2015年06月, [査読有り], 10.1142/S0217984915400382
  • Speciation of Chromium(VI) and Selenium(IV and VI) by High-Performance Liquid Chromatography-Fluorometric Detection Using 2,3-Diaminonaphthalene as a Single Derivatizing Reagent, Tomoki Yabutani, Yuji Inoi, Ayumi Kimura, Yohei Yamada, Toshio Takayanagi, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2014年12月, [査読有り], 0009-2673, 10.1246/bcsj.20140109
  • Facile synthesis of platinum nanoparticle-containing porous carbons, and their application to amperometric glucose biosensing, Tomoki Yabutani, Geoffrey I. N. Waterhouse, Dongxiao Sun-Waterhouse, James B. Metson, Akiko Iinuma, Le Thi Xuan Thuy, Yohei Yamada, Toshio Takayanagi, Junko Motonaka, MICROCHIMICA ACTA, MICROCHIMICA ACTA, 2014年11月, [査読有り], 0026-3672, 10.1007/s00604-014-1270-1
  • Analysis of Ion-association Equilibrium of Precipitable Dipicrylaminate Ion in Aqueous Solution by Capillary Zone Electrophoresis, Toshio Takayanagi, Kinuyo Ogura, Tomoki Yabutani, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2014年09月, [査読有り], 0910-6340, 10.2116/analsci.30.919
  • キャピラリーゾーン電気泳動法を用いる電気泳動移動度の測定による光分解性ハロペリドールの酸解離反応解析, 島上 夏美, 薮谷 智規, 高柳 俊夫, 分析化学, 分析化学, 2014年08月, [査読有り], 0525-1931
  • HIV associated hypocalcaemia among diarrheic patients in northwest Ethiopia: a cross sectional study, Beyene Moges, Bemnet Amare, Timoki Yabutani, Afework Kassu, BMC PUBLIC HEALTH, BMC PUBLIC HEALTH, 2014年07月, [査読有り], 1471-2458, 10.1186/1471-2458-14-679
  • Micellar Electrokinetic Chromatography of Graphene and Chemically Modified Graphenes with Dodecylbenzenesulfonate, Toshio Takayanagi, Masaki Morimoto, Tomoki Yabutani, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2013年08月, [査読有り], 0910-6340, 10.2116/analsci.29.769
  • Fabrication and Characterization of a Thermostable Quinoprotein Aldose Sugar Dehydrogenase Immobilized Electrode, Yohei Yamada, Tetsuya Hayashi, Haruhiko Sakuraba, Tomoki Yabutani, Toshio Takayanagi, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2013年01月, [査読有り], 0910-6340, 10.2116/analsci.29.79
  • Young Generation in Analytical Sciences, ISHIZAKA Shoji, YABUTANI Tomoki, FUJIWARA Kazuhiko, Analytical Sciences, Analytical Sciences, 2013年01月, 0910-6340
  • Micronutrient levels and nutritional status of school children living in Northwest Ethiopia, Bemnet Amare, Beyene Moges, Bereket Fantahun, Ketema Tafess, Desalegn Woldeyohannes, Gizachew Yismaw, Tilahun Ayane, Tomoki Yabutani, Andargachew Mulu, Fusao Ota, Afework Kassu, NUTRITION JOURNAL, NUTRITION JOURNAL, 2012年12月, [査読有り], 1475-2891, 10.1186/1475-2891-11-108
  • Multielemental Elution Behavior of Metal Ions Adsorbed on Iminodiacetic Acid Chelating Resin by Using Hydrogen Peroxide as an Eluent, Tomoki Yabutani, Hidehiko Sumi, Takamasa Nakamura, Shinsuke Akatsuki, Le Thi Xuan Thuy, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2012年05月, [査読有り], 0910-6340, 10.2116/analsci.28.463
  • Gravitational Annealing of Colloidal Crystals, Yoshihisa Suzuki, Jin Endoh, Atsushi Mori, Tomoki Yabutani, Katsuhiro Tamura, DIFFUSION IN MATERIALS - DIMAT 2011, DIFFUSION IN MATERIALS - DIMAT 2011, 2012年, [査読有り], 1012-0386, 10.4028/www.scientific.net/DDF.323-325.555
  • Hypercalcemia in Patients with Tuberculosis and HIV Infections in Northwest Ethiopia, Bemnet Amare, Meseret Solomon, Tomoki Yabutani, Afework Kassu, Asian Pacific Journal of Tropical Disease, Asian Pacific Journal of Tropical Disease, 2012年, [査読有り], 10.1016/S2222-1808(12)60234-5
  • 可搬型環境試料中重金属濃度分析計の高機能化 : セレン(IV)のマイクロカラム着色に基づく目視蛍光定量法, 薮谷 智規, 木下 峻輔, 猪井 勇志, 岩野 あずさ, 横田 昌幸, テゥイ レー, ティ スン, 外輪 健一郎, 高柳 俊夫, 徳島大学大学院ソシオテクノサイエンス研究部研究報告, 徳島大学大学院ソシオテクノサイエンス研究部研究報告, 2012年, 2185-9094
  • [Study of the removal of Pb2+ from aqueous solution by poly-gamma-glutamic acid coated magnetic nanoparticles]., Zhang J, Deng HP, Yabutani T, Yasuzawa M, Huan jing ke xue, Huan jing ke xue, 2011年11月, [査読有り], 0250-3301
  • Serum Concentration of Selenium in Diarrheic Patients with and without HIV/AIDS in Gondar, Northwest Ethiopia, Bemnet Amare , Ketema Tafess , Fusao Ota , Feleke Moges , Beyene Moges , Berhanu Andualem , Tomoki Yabutani and Afework Kassu, Journal of AIDS & Clinical Research, Journal of AIDS & Clinical Research, 2011年06月, [査読有り]
  • Highly selective needle-type glucose sensors prepared by the immobilization of glucose oxidase on γ-polyglutamic acid film., Yasuzawa M, Edagawa K, Matsunaga T, Takaoka H, Yabutani T, Analytical Sciences, Analytical Sciences, 2011年03月, [査読有り], 0910-6340, 10.2116/analsci.27.337
  • Catalytic properties and crystal structure of quinoprotein aldose sugar dehydrogenase from hyperthermophilic archaeon Pyrobaculum aerophilum, Haruhiko Sakuraba, Kaori Yokono, Kazunari Yoneda, Akira Watanabe, Yasuhiko Asada, Takenori Satomura, Tomoki Yabutani, Junko Motonaka, Toshihisa Ohshima, ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 2010年10月, [査読有り], 0003-9861, 10.1016/j.abb.2010.08.002
  • Development of a Compact System for the Determination of Lead Using a Liquid Core Waveguide and a Blue Diode as a Light Source, Tomoki Yabutani, Honami Kurokawa, Yuka Hayashi, Hiromichi Higuchi, Yuki Iwata, Yuya Hashizume, Shuji Wada, Yukako Hayashi, Junko Motonaka, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2010年04月, [査読有り], 0910-6340, 10.2116/analsci.26.407
  • Multielemental Characterization of Airborne Particulate Matter Collected in Bucharest and Tokushima by Inductively Coupled Plasma Mass Spectrometry and Inductively Coupled Plasma Atomic Emission Spectrometry, Tomoki Yabutani, Yumi Nakamoto, Ryoji Yamanouchi, Le Thi Xuan Thuy, Kei-ichiro Murai, Junko Motonaka, Mitsuharu Ogaki, Madelene Anette Dancila, Rodica Stanescu, Marinela Plesca, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2010年03月, [査読有り], 0910-6340, 10.2116/analsci.26.395
  • 河川水由来のマグネシウムを利用した水酸化物コロイド凝集/限外ろ過法による微量金属イオンの分離濃縮, 藪谷 智紀, 山岡 徹, 福田 晃規, 中村 斎, 林 由佳子, 本仲 純子, 日本海水学会誌, 日本海水学会誌, 2009年08月, 0369-4550
  • An Amperometric D-Amino Acid Biosensor Prepared with a Thermostable D-Proline Dehydrogenase and a Carbon Nanotube-Ionic Liquid Gel, Yuji Tani, Yukiko Itoyama, Kenichi Nishi, Chikahiro Wada, Yoshio Shoda, Takenori Satomura, Haruhiko Sakuraba, Toshihisa Ohshima, Yukako Hayashi, Tomoki Yabutani, Junko Motonaka, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2009年07月, [査読有り], 0910-6340, 10.2116/analsci.25.919
  • Association of low serum selenium with anemia among adolescent girls living in rural Vietnam, Nguyen Van Nhien, Yabutani Tomoki, Nguyen Cong Khan, Le Nguyen, Bao Khanh, Nguyen Xuan Ninh, Le Thi Kim Chung, Motonaka Junko, Nakaya Yutaka, NUTRITION, NUTRITION, 2009年01月, [査読有り], 0899-9007, 10.1016/j.nut.2008.06.032
  • Relationship of Low Serum Selenium to Anemia among Primary School Children Living in Rural Vietnam, Nhien Nguyen Van, Khan Nguyen Cong, Yabutani Tomoki, NINH Nguyen Xuan, CHUNG Le Thi Kim, MOTONAKA Junko, NAKAYA Yutaka, Journal of nutritional science and vitaminology, Journal of nutritional science and vitaminology, 2008年12月, [査読有り], 0301-4800
  • Development of a D-amino acids electrochemical sensor based on immobilization of thermostable D-Proline dehydrogenase within agar gel membrane, Yuji Tani, Katsuhito Tanaka, Tomoki Yabutani, Yuji Mishima, Haruhiko Sakuraba, Toshihisa Ohshima, Junko Motonaka, Analytica Chimica Acta, Analytica Chimica Acta, 2008年, [査読有り], 10.1016/j.aca.2008.04.063
  • 環境水試料中セレンの目視蛍光定量システムの構築, 薮谷 智規, 飯沼 明子, 横田 昌幸, Kishimoto Hideyuki, 本仲 純子, 林 由佳子, 徳島大学大学院ソシオテクノサイエンス研究部研究報告, 徳島大学大学院ソシオテクノサイエンス研究部研究報告, 2008年, 2185-9094
  • 耐熱性ジアホラーゼ固定化電極の作製とそのNAD依存性酵素センサーへの応用, 田中勝人, 谷祐児, 薮谷智規, 三島有二, 櫻庭春彦, 大島敏久, 本仲純子, Rev Polarogr, Rev Polarogr, 2007年11月, [査読有り], 0034-6691
  • 極性有機溶媒環境下における耐熱性D-プロリン脱水素酵素固定化電極の特性評価, 谷 祐児, 薮谷 智規, 三島 有二, 郷田 秀一郎, 桜庭 春彦, 大島 敏久, 本仲 純子, 電子情報通信学会技術研究報告. MBE, MEとバイオサイバネティックス, 電子情報通信学会技術研究報告. MBE, MEとバイオサイバネティックス, 2007年07月, 0913-5685
  • Characterization of a glucose sensor prepared by electropolymerization of pyrroles containing a tris-bipyridine osmium complex, Masaki Tsujimoto, Tomoki Yabutani, Atsushi Sano, Yuji Tani, Hiroki Murotani, Yuji Mishima, Kenichi Maruyama, Mikito Yasuzawa, Junko Motonaka, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2007年01月, [査読有り], 0910-6340
  • A multielement masking method using magnesium hydroxide coprecipitation for the selective determination of lead in water samples by differential pulse anodic stripping voltammetry, Tomoki Yabutani, Yasuhiro Utsunomiya, Yukiko Kado, Yuji Tani, Hideyuki Kishimoto, Akinori Fukuda, Junko Motonaka, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2006年07月, [査読有り], 0910-6340, 10.2116/analsci.22.1021
  • Partitionings of major-to-ultratrace elements in bittern as determined by ICP-AES and ICP-MS with aid of chelating resin preconcentration, Shan Ji, Yanbei Zhu, Tomoki Yabutani, Akihide Itoh, Hiroki Haraguchi, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2006年04月, 0009-2673, 10.1246/bcsj.79.588
  • Partitionings of major-to-ultratrace elements in bittern as determined by ICP-AES and ICP-MS with aid of chelating resin preconcentration, Shan Ji, Yanbei Zhu, Tomoki Yabutani, Akihide Itoh, Hiroki Haraguchi, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2006年04月, 0009-2673, 10.1246/bcsj.79.588
  • 高温溶解性ゲルを用いた耐熱性膜酵素電極の構築とその特性評価, 谷祐児, 薮谷智規, 三島有二, 郷田秀一郎, 桜庭春彦, 大島敏久, 本仲純子, Rev Polarogr, Rev Polarogr, 2005年11月, [査読有り], 0034-6691
  • 海水・食塩中微量元素の多元素定量法, 藪谷 智規, 日本海水学会誌, 日本海水学会誌, 2005年, 0369-4550
  • ホタテ貝中腸腺中微量金属元素の多元素定量法, 分析化学, 分析化学, 2004年, 10.2116/bunsekikagaku.53.1435
  • 塩中マグネシウムを用いる共沈/誘導結合プラズマ発光分析法及び誘導結合プラズマ質量分析法による食塩試料中微量元素の多元素迅速定量法の開発, 日本海水学会誌, 日本海水学会誌, 2004年, 10.11457/swsj1965.58.36
  • Electrochemical properties of a thiol monolayers coated gold electrode modified with osmium gel membrane as enzyme sensor, T Yabutani, N Okada, K Maruyama, J Motonaka, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2003年04月, 0217-9792
  • オスミウム錯体を用いるポリマー修飾グルコースセンサーの試作とその電気化学的特性評価, 本仲 純子, 薮谷 智規, 丸山 健一, 塩見 得朗, 立石 典生, 三島 有二, 分析化学 = Japan analyst, 分析化学 = Japan analyst, 2002年12月, 0525-1931
  • Biosensor for Glucose Using a Carbon Paste Electrode Modified with Osmium Complex-Zirconium Phosphate, YABUTANI Tomoki, OZAKI Daisuke, MARUYAMA Ken-ichi, MISHIMA Yuji, MOTONAKA Junko, Analytical Sciences/Supplements, Analytical Sciences/Supplements, 2002年
  • Multielement Monitoring for Dissolved and Acid-soluble Concentrations of Trace Metals in Surface Seawater along the Ferry Track between Osaka and Okinawa as Investigated by ICP-MS, Yabutani Tomoki, Mouri Fumihiko, Itoh Akihide, HARAGUCHI Hiroki, Analytical Sciences, Analytical Sciences, 2001年03月, [査読有り], 0910-6340
  • Multielement Determination of Trace Elements in Seawater by Inductively Coupled Plasma Mass Spectrometry after Tradem Preconcentration with Cooperation of Chelating Resin Adsorption and Lanthanum Coprecipitation, Yabutani Tomoki, Chiba Koichi, Haraguchi Hiroki, Bulletin of the Chemical Society of Japan, Bulletin of the Chemical Society of Japan, 2001年01月, 0009-2673, 10.1246/bcsj.74.31
  • Biosensor for Glucose Using a Carbon Paste Electrode Modified with Osmium Complex-Zirronium Phosphate, Analytical Sciences, Analytical Sciences, 2001年
  • 食塩の多元素分析と化学形態別分析, 紀 杉, 薮谷 智規, 伊藤 彰英, 千葉 光一, 原口 紘, Biomedical research on trace elements, Biomedical research on trace elements, 2000年12月, 0916-717X
  • 微量元素の生物地球化学並びに環境動態に関する研究-天然水中微量元素の化学形態別分析-, 原口 紘キ, 伊藤 彰英, 紀 杉, 藪谷 智規, 環境科学会誌 = Environmental science, 環境科学会誌 = Environmental science, 2000年08月, 0915-0048
  • Concentration variations of trace metals in surface seawater along the ferry track between Osaka and Okinawa as determined by ICP-MS after chelating resin preconcentration, T Yabutani, F Mouri, H Haraguchi, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2000年07月, 0910-6340
  • Concentration variations of trace metals in surface seawater along the ferry track between Osaka and Okinawa as determined by ICP-MS after chelating resin preconcentration, T Yabutani, F Mouri, H Haraguchi, ANALYTICAL SCIENCES, ANALYTICAL SCIENCES, 2000年07月, 0910-6340, 10.2116/analsci.16.675
  • Fractional Distributions of Major-to-Ultratrace Elements in Coastal Seawater and Their Partitionings in Laboratory-Made Salts as Investigated by Inductively Coupled Plasma Atomic Emission Spectrometry and Inductively Coupled Plasma Mass Spectrometry with, Ji Shan, Yabutani Tomoki, Itoh Akihide, HARAGUCHI Hiroki, Bulletin of the Chemical Society of Japan, Bulletin of the Chemical Society of Japan, 2000年05月, 0009-2673
  • Simultaneous multielement determination of hydride- and oxoanion-forming elements in seawater by inductively coupled plasma mass spectrometry after lanthanum coprecipitation, T Yabutani, S Ji, F Mouri, A Itoh, K Chiba, H Haraguchi, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2000年04月, 0009-2673
  • 誘導結合プラズマ発光分析法及び誘導結合プラズマ質量分析法による自然塩と精製塩の多元素定量(共著), 紀 杉, 藪谷 智規, 伊藤 彰英, 原口 紘気, 日本海水学会誌, 日本海水学会誌, 2000年04月, 0369-4550, 10.11457/swsj1965.54.117
  • 天然塩製塩過程における海水から塩への元素の分配(共著), JI S, 薮谷智規, 伊藤彰英, 千葉光一, 原口紘き, 分析化学, 分析化学, 2000年, 0525-1931, 10.2116/bunsekikagaku.49.111
  • 誘導結合プラズマ発光分析法及び誘導結合プラズマ質量分析法による天日塩中不溶粒子の多元素分析とその地球化学的考察(共著), JI S, 薮谷智規, 毛利文彦, 木全千泉, 伊藤彰英, 千葉光一, 原口紘き, 分析化学, 分析化学, 1999年, 0525-1931, 10.2116/bunsekikagaku.48.897
  • キレート樹脂濃縮法を併用した誘導結合プラズマ質量分析法及び誘導結合プラズマ発光分析法による河川水標準物質中の微量元素の多元素同時定量(共著), 分析化学, 分析化学, 1998年, 10.2116/bunsekikagaku.47.109

書籍等出版物

講演・口頭発表等

  • 水酸化ランタンへのMo(VI), V(V), W(VI)の吸着挙動とH2O2による溶離挙動の解析, 山田洋平, 高柳俊夫, 藪谷智規, 日本分析化学会 第67年会, 2018年09月
  • 非加熱プロセスによる樹脂混練用CNFの製造, 内村浩美, 秀野晃大, 藪谷智規, エコプロ2017, 2017年12月
  • 過酸化水素添加時の水酸化ランタン担体からのMo(Ⅵ), V(Ⅴ), W(Ⅵ)の溶離挙動, 山田洋平, 椋田千景, 村井啓一郎, 高柳俊夫, 藪谷智規, 日本分析化学会第66年会, 2017年09月
  • 過酸化水素を溶出液とする水酸化ランタン共沈殿からのオキソ酸金属イオンの回収, 山田 洋平, 椋田 千景, 村井 啓一郎, 高柳 俊夫, 薮谷 智規, 日本分析化学会 第65年会, 2016年09月
  • トラックエッチドメンブレンフィルター孔内で成長したリゾチーム結晶の単結晶X線構造解析, 山田 洋平, 岡田 英理子, 鈴木 良尚, 薮谷 智規, 第76回 分析化学討論会, 2016年05月
  • キャピラリーゾーン電気泳動法によるヘキサメチレンテトラミンの酸解離反応解析, 島上夏美, 薮谷智規, 高柳俊夫, 第35回キャピラリー電気泳動シンポジウム, 2015年12月
  • ポリペルオキシド修飾シリカゲルの合成とその評価, 斉 傲晨, 薮谷智規, 高柳俊夫, 平野朋広, 第5回CSJ化学フェスタ, 2015年10月
  • 固相抽出/誘導結合プラズマ質量分析法を用いた海水中Cu(I/II)の酸化数別定量法の開発, 岸邊慎吾, 上村美貴, 高柳俊夫, 薮谷智規, 日本海水学会第66年会, 2015年06月
  • キャピラリーゾーン電気泳動法を用いたヘキサメチレンテトラミンの酸解離反応解析, 島上夏美, 藪谷智規, 藪谷智規, 高柳俊夫, 分析化学討論会講演要旨集, 2015年05月
  • カルボキシル基導入高分岐ポリマー及び活性炭を用いるヘキサメチレンテトラミンの除去, 薮谷智規, 西前真治, 磯部能史, 山田洋平, 高柳俊夫, 平野朋広, 第75回分析化学討論会, 2015年05月
  • 金属分離・回収に向けたペルオキシ化合物の利用, 藪谷智規, 小西雅志, 椋田千景, 隅英彦, 中村崇聖, 高柳俊夫, 分析化学討論会講演要旨集, 2014年05月
  • 海水中一価および二価銅イオンの形態別定量に向けた現場固相抽出法の開発, 藪谷智規, 上村美貴, 椋田千景, 山田洋平, 高柳俊夫, 分析化学討論会講演要旨集, 2013年05月
  • 耐熱性キノプロテインアルドース脱水素酵素のバイオ電気化学センサーへの利用, 林哲也, 山田洋平, 櫻庭春彦, 林由佳子, 本仲純子, 藪谷智規, 日本化学会西日本大会講演要旨集, 2010年11月
  • 3,3’,5,5’‐テトラメチルベンジジン試薬を用いる酵素‐基質反応により生成する過酸化水素の蛍光検出, 山下陽子, 中島麻里, 山田洋平, 谷祐児, 林由佳子, 本仲純子, 藪谷智規, 日本化学会西日本大会講演要旨集, 2010年11月
  • メタクリレート系高分岐ポリマーの合成と電気化学材料への応用, 磯部能史, 上池亮太, 平野朋広, 右手浩一, 林由佳子, 本仲純子, 藪谷智規, 日本化学会西日本大会講演要旨集, 2010年11月
  • アガロースを還元剤と炭素源とするナノ白金粒子多孔性炭素材の開発とその評価, 藪谷智規, THUY Le, Thi Xuan, 飯沼明子, 本仲純子, METSON James, WATERHOUSE Geoffrey, 東京コンファレンス講演要旨集, 2010年08月
  • 耐熱性酵素を利用したアンペロメトリック分岐鎖アミノ酸フロー測定システムの開発, 中島麻里, 田中勝人, 谷祐児, 藪谷智規, 林由佳子, 櫻庭春彦, 大島敏久, 本仲純子, 日本化学会西日本大会講演要旨集, 2009年11月
  • 食塩中マグネシウムを共沈担体とする微量元素分離濃縮, 山岡徹, 福田晃規, 林由佳子, 藪谷智規, 本仲純子, 日本化学会西日本大会講演要旨集, 2008年11月
  • Bacillus Subtills由来CotAのバイオセンサーへの利用, 山田洋平, 和田知賀博, 谷祐児, 林由佳子, 藪谷智規, 本仲純子, 酒瀬川信一, 櫻庭春彦, 大島敏久, 日本化学会西日本大会講演要旨集, 2008年11月
  • 都市環境内白金属元素の定量のための試料中鉄の還元析出を利用する分離濃縮, 出原宏司, THUY Le, Thi Xuan, 林由佳子, 藪谷智規, 本仲純子, 日本化学会西日本大会講演要旨集, 2008年11月
  • 強塩基性条件下での両性金属イオン分離およびその簡易分析への応用, 飯沼明子, 横田昌幸, 林由佳子, 藪谷智規, 本仲純子, 日本化学会西日本大会講演要旨集, 2008年11月
  • 1930年代~1970年代の新町川の水質についての一考察, 大垣光治, 吉積幸二, 本仲純子, 藪谷智規, 四国公衆衛生学会雑誌, 2007年02月
  • 荷電アミノ酸導入ピロール電解共重合膜による酵素の包括固定, 佐野篤志, 室谷浩紀, 藪谷智規, 本仲純子, 辻本正紀, Rev Polarogr, 2006年11月
  • 中空糸液膜抽出を用いる河川水中シマジンの高感度分析, 岩田裕樹, 橋爪裕也, 藪谷智規, 本仲純子, 日本化学会西日本大会講演予稿集, 2006年11月
  • 血清中亜鉛の電気化学測定法の開発, 大隅崇靖, 藪谷智規, 本仲純子, 日本化学会西日本大会講演予稿集, 2006年11月
  • 耐熱性NAD依存性酵素/ジアホラーゼ電極の作製とその特性評価, 田中勝人, 谷祐児, 藪谷智規, 三島有二, 郷田秀一郎, 櫻庭春彦, 大島敏久, 本仲純子, 日本化学会西日本大会講演予稿集, 2006年11月
  • アルカリ融解/プラズマ分光法による固体環境試料の多元素同時定量に向けた基礎的検討, 山之内亮二, 藪谷智規, 本仲純子, 日本化学会西日本大会講演予稿集, 2006年11月
  • 金微粒子‐酵素複合体の合成とその特性評価, 西原大輔, 三島有二, 藪谷智規, 本仲純子, 日本化学会西日本大会講演予稿集, 2005年10月
  • 電解重合法による生体分子包括固定化に及ぼす荷電アミノ酸(リジン・グルタミン酸)結合ピロールの導入効果, 佐野篤志, 室谷浩紀, 辻本正紀, 藪谷智規, 本仲純子, 日本化学会西日本大会講演予稿集, 2005年10月
  • 分析化学と環境計測を繋ぐ 環境試料中の鉛の分析を例として, 藪谷智規, 日本化学会西日本大会講演予稿集, 2005年10月

MISC

  • Magnetic removal of cesium ions using γ-poly(glutamic acid)-coated magnetite particles with the enhanced effect of zeolite supplementation, Le Thi Xuan Thuy, Mikito Yasuzawa, Tomoki Yabutani, Bulletin of the Chemical Society of Japan, 公益社団法人 日本化学会, Bulletin of the Chemical Society of Japan, 86, 8, 958, 962, 2013年08月, 0009-2673, 10.1246/bcsj.20130020, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84882931888&origin=inward, Magnetic removal of cesium ions (Cs) by γ-poly(glutamic acid)-coated magnetite particles (PGA-MPs) was investigated using a variety of waters. Cs was sufficiently removed from fresh water in a pH range from 7.0 to 9.0, with a removal efficiency of higher than 80% by using 5wt% PGA-MPs, while that from artificial seawater was limited to 30%. Zeolite particles were employed as a supplementary adsorbent to adsorb Cs before the collection of zeolite with PGA-MPs. The addition of 1wt% zeolite particles enhanced the recovery of Cs up to 97.7 ± 0.2% for fresh water and the amount of PGA-MPs required for the treatment was reduced to 0.2 wt%. Nevertheless, such improvement was not observed for artificial seawater treatment. The zeolite supplementation method performed sufficiently on the recovery of Cs in tap water and spring water, and their recoveries were both higher than 93% with R.S.D. of less than 1%. These results strongly suggest that the provided procedure can be practically applied to the removal of Cs from various inland waters.
  • Guest editorial, Shoji Ishizaka, Tomoki Yabutani, Kazuhiko Fujiwara, Analytical Sciences, Analytical Sciences, 29, 1, 2013年01月, 0910-6340, 10.2116/analsci.29.1, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84873876489&origin=inward
  • PREPARATION OF AN ELECTRODE MODIFIED WITH A THERMOSTABLE ENZYME BACILLUS SUBTILIS COTA BY ELECTRODEPOSITION, Toshio Watanabe, Yohei Yamada, Junko Motonaka, Haruhiko Sakuraba, Tomoki Yabutani, Mikito Yasuzawa, International Journal of Modern Physics: Conference Series, International Journal of Modern Physics: Conference Series, 6, 150-155, 2012年04月
  • Serum concentration of selenium in diarrheic patients with and without HIV/AIDS in Gondar, Northwest Ethiopia, Bemnet Amare, Ketema Tafess, Fusao Ota, Feleke Moges, Beyene Moges, Berhanu Andualem, Tomoki Yabutani, Afework Kassu, Journal of AIDS and Clinical Research, Journal of AIDS and Clinical Research, 2, 2011年12月, 10.4172/2155-6113.1000128, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84874107930&origin=inward, Background: Selenium deficiency is known to be a major public health problem, associated with increased risk of mortality with AIDS and AIDS-related complex, diarrhea included compared to those of healthy controls. In Ethiopia, there are no studies conducted on serum selenium status diarrheic patients with and without HIV infection. Therefore, the present study was aimed at determining the level of serum selenium in HIV infected and sex and aged matched HIV negative diarrheic patients. Methods: This was a cross-sectional study of 206 (97 HIV seronegative and 109 HIV seropositive) diarrheic patients of both genders seen at University of Gondar Hospital, Gondar, Ethiopia. Serum selenium was measured by inductively coupled plasma-mass spectrometer. Results: The mean and standard deviation of serum selenium levels in HIV seropositives was 5.90 ± 2.78 μg/dl and in HIV seronegatives was 6.99 ± 4.26 μg/dl. Deficiency of selenium was seen in 95.9% and 71.56% of diarrheic patients with and without HIV co-infection, respectively. The over all selenium deficiency was observed in 83.0% of patients included in the study irrespective of their HIV serostatus while 85.3%of the patients infected with HIV and 80.4% of patients without HIV infection had serum selenium level below 7μg/dl. The low serum selenium level was not associated with presence or absence of intestinal parasites neither with sociodemographic variables such as age, residence, marital status, occupation, monthly income. The mean serum selenium level of all male cases was statistically significantly lower than that of the females (P<0.05). Conclusion: Our results show high prevalence of selenium deficiencies in HIV seropositive and seronegative diarrheic patients in Gondar, Ethiopia. Although this is a small group of study subjects, the findings may be used as a tool to suggest further in-depth prospective clinical trials to determine whether selenium supplements may be of public health benefit among HIV-infected populations as a stand-alone therapeutic approach and potentially as an adjuvant to antiretroviral therapy. © 2011 Amare, et al.
  • Selectivity and regeneratability evaluation of antigen analogous-modified surface film for polychlorinated dibenzodioxin immunosensor using surface plasmon resonance measurement, Mikito Yasuzawa, Norimichi Futagami, Yusuke Fuchiwaki, Tomoki Yabutani, Junko Motonaka, Bunseki Kagaku, 公益社団法人 日本分析化学会, Bunseki Kagaku, 60, 1, 81, 86, 2011年02月, 0525-1931, 10.2116/bunsekikagaku.60.81, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79951900164&origin=inward, For the development of a sensitive and accurate immunosensor, the production of a highly specific surface to the corresponding antibody is essential. Moreover, a specific surface having good reusability is worthwhile for constructing a prompt auto-monitoring immunosensing system. In this study, antigen analogous-modified gold substrates having a specific adsorption property to an anti-dioxin antibody, were prepared by the immobilization of 2,4,5-trichlorophenoxy (TCP) derivatives on a gold surface using various methods. An anti-dioxin antibody, which has a good correlation immunoaffinity with the total toxic equivalent quantity (TEQ) of polychlorinated dibenzo-p-dioxins, was employed as a specific antibody, and the specification of the surface was evaluated by a comparison of the surface plasmon resonance (SPR) responses to a specific anti-dioxin antibody and non-specific anti-hemoglobin antibody. In order to obtain a firm and stable immobilization of TCP, a carboxyl group was introduced on gold by a self-assemble monolayer (SAM) technique, and TCP derivatives were attached to the SAM surface with covalent bonding directly and indirectly through the presence of a hexamethylene chain, bovine serum albumin (BSA), and ethylene glycol oligomer (EGO). A TCP derivative-immobilized substrate, prepared using BSA, showed poor reusability. A TCP derivative-immobilized substrate having EGO was highly specific to an anti-dioxin antibody, while that prepared by the direct immobilization of TCP and with introduction of a hexamethylene chain presented nonspecific adsorption. In addition, a TCP derivative-immobilized substrate having EGO showed a good reproducible response from the second repetition, and was reusable more than seven times. © 2011 The Japan Society for Analytical Chemistry.
  • Flow-injection amperometric determination of urine glucose using platinum electrode modified with nafion® and saccharide substitued polypyrrole, Mikito Yasuzawa, Makoto Kitahara, Tomoki Yabutani, Junko Motonaka, Bunseki Kagaku, 公益社団法人 日本分析化学会, Bunseki Kagaku, 58, 11, 941, 944, 2009年12月, 0525-1931, 10.2116/bunsekikagaku.58.941, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77950610196&origin=inward, A flow-injection amperometric analysis system for the determination of glucose in human urine was analyzed. The glucose sample was mixed with glucose oxidase, and was introduced into the flow-injection system. Hydrogen peroxide produced by an enzymatic reaction was amperometrically detected by a platinum electrode modified with Nafion, and an electrochemically polymerized saccharide substituted polypyrrole. The influence of electroactive compounds such as ascorbic acid, uric acid, and acetaminophen to the glucose response observed in this system was negligible. A good linear relationship between the glucose concentration and the response current was obtained within a concentration of up to 22.4 mmol dm-3. The relative standard deviation for ten replicate analyses of 5.6 mmol dm-3 glucose in human urine was 7.4%. © 2009 The Japan Society for Analytical Chemistry.
  • Multielemental determination of trace elements in sewage sludge by inductively coupled plasma mass spectrometry and inductively coupled plasma atomic emission spectrometry, Shinsuke Akatsuki, Ryoji Yamanouchi, Yumi Nakamoto, Koji Yoshizumi, Mitsuharu Ogaki, Tomoki Yabutani, Yukako Hayashi, Junko Motonaka, Bunseki Kagaku, 公益社団法人 日本分析化学会, Bunseki Kagaku, 57, 8, 659, 666, 2008年11月, 0525-1931, 10.2116/bunsekikagaku.57.659, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=55949091783&origin=inward, A multielemental determination method for major-to-trace elements in sewage sludge has been developed by inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) after microwave radiation assisted acid digestion or alkali fusion. A reference material of sewage sludge (BCR-144R) was analyzed to verify the determination method. The determined values of some elements such as Zn, Cu, Pb, Ni, Co and Cd by the alkali fusion were lower than the certified values. The analytical values of Cu and Ni obtained by the alkali fusion method with a platinum crucible was lower than those with a pyrolysis boron nitride crucible. From these results, it was suggested that the losses in the alkali fusion were due to volatilization among ignition for Zn, Pb, Co and Cd and alloy formation between Cu and Ni and platinum as crucible material. Furthermore, hydrofluoric acid was necessary to dissolve niobium, tantalum and hafnium in both decomposition processes for acid digestion and alkali fusion. The microwave radiation assisted acid digestion/ICP-MS and ICPAES method was applied to the determination of major-to-trace elements in a sewage sludge sample collected at a sewage treatment plant in Tokushima. As a result, 44 elements could be determined. © 2008 The Japan Society for Analytical Chemistry.
  • Serum zinc, copper, selenium, calcium, and magnesium levels in pregnant and non-pregnant women in Gondar, Northwest Ethiopia, Afework Kassu, Tomoki Yabutani, Andargachew Mulu, Belay Tessema, Fusao Ota, Biological Trace Element Research, Biological Trace Element Research, 122, 97, 106, 2008年05月, 0163-4984, 10.1007/s12011-007-8067-6, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=47049122291&origin=inward, Pregnant women in developing countries are vulnerable to multiple micronutrient deficiencies. Studies assessing serum levels of the micronutrients and magnitude of their deficiencies are very scarce in African subjects. This study was aimed at determining serum levels of micronutrients in 375 pregnant (42 HIV seropositive) and 76 non-pregnant women (20 HIV seropositive) who visited the University of Gondar Hospital, Gondar, Ethiopia. Serum concentrations of zinc,\ copper, selenium, calcium, and magnesium were determined using an inductively coupled plasma mass spectrometer. Irrespective of HIV serostatus, pregnant women had significantly higher serum concentrations of copper and copper/zinc ratio and significantly lower magnesium compared to those in non-pregnant women (P∈<∈0.05). Except for selenium, which was significantly lower in HIV-seropositive pregnant women (P∈<∈0. 05), the mean serum concentrations of zinc, copper, calcium, and magnesium were not significantly different between pregnant women by HIV serostatus. The prevalence of deficiency in zinc, magnesium, selenium, and calcium in the pregnant women, irrespective of their HIV serostatus, was 66.7%, 25.6%, 21.9%, and 9.3%, respectively. The magnitude of deficiency in zinc, magnesium, and selenium was significantly higher in HIV seropositive pregnant women (76.2%, 52.4%, and 45.2%) than that in HIV-seronegative pregnant women (65.5%, 22.2%, and 18.9%) and in HIV-seronegative non-pregnant women (42.9%, 8.1%, and 30.4%; P∈<∈0.05). Deficiency in one, two, three, or four mineral elements was observed in 44.8%, 14.4%, 9.9%, and 5.1% of the pregnant women, respectively. Only 25.9% of the pregnant women and 44.7% of the non-pregnant women were not deficient in any of the micronutrients. The high prevalence of micronutrient deficiencies in pregnant and non-pregnant women in Gondar, Ethiopia warrants the need for strategies on prevention and control of the deficiencies. © 2007 Humana Press Inc.
  • Micronutrient deficiencies and anemia among preschool children in rural Vietnam, Nguyen Van Nhien, Nguyen Cong Khan, Nguyen Xuan Ninh, Phan Van Huan, Le Thi Hop, Nguyen Thi Lam, Fusao Ota, Tomoki Yabutani, Vu Quynh Hoa, Junko Motonaka, Takeshi Nishikawa, Yutaka Nakaya, Asia Pacific Journal of Clinical Nutrition, Asia Pacific Journal of Clinical Nutrition, 17, 48, 55, 2008年03月, 0964-7058, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=51649089151&origin=inward, The prevalence of trace elements deficiencies, vitamin A deficiency, anemia, and their relationships were investigated in a cross sectional study involving 243 children aged from 12 to 72 months in rural Vietnam. Serum levels of copper, zinc, selenium and magnesium were determined by inductively coupled plasma mass spectrometer and that of retinol by high performance liquid chromatography. Hemoglobin concentration in whole blood was measured by the cyanmethemoglobin method. The prevalence of deficiencies in zinc, selenium, magnesium, and copper was 86.9%, 62.3%, 51.9%, and 1.7%, respectively. On the other hand, 55.6% were anemic and 11.3% had vitamin A deficiency. Deficiency in two or more micronutrient was found in 79.4% of the children. Parameters associated significantly with anemia were selenium deficiency (OR 2.80 95% CI 1.63-4.80, p = 0.0002) and serum retinol <1.05 μmol/L (OR 1.83, 95% CI 1.10-3.05, p = 0.021). Magnesium deficiency (OR 3.09 95% CI 1.36-7.03) was found to be a risk factor for zinc deficiency and vice versa. The results indicate that micronutrient deficiencies are prevalent among preschool children in Vietnam. In addition, the results also demonstrate a strong relationship between selenium deficiency and anemia. Clearly, sustainable strategies are urgently required to overcome the problems in the country.
  • Simultaneous determination of trimethyl- and triethyllead in urban dust by species-specific isotope dilution/gas chromatography-inductively coupled plasma mass spectrometry, Tomoki Yabutani, Junko Motonaka, Kazumi Inagaki, Akiko Takatsu, Takashi Yarita, Koichi Chiba, Analytical Sciences, 社団法人 日本分析化学会, Analytical Sciences, 24, 6, 791, 794, 2008年01月, 0910-6340, 10.2116/analsci.24.791, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=49749149176&origin=inward, Both 206 Pb-labeled trimethyllead (TML) and triethyllead (TEL) were synthesized from 206 Pb-enriched metallic Pb certified reference material (NIST SRM 983) and iodomethane or iodoethane through a one-process reaction in a closed system using centrifuge tubes, respectively. Organolead compounds in an urban dust reference material (BCR CRM 605) were extracted with an acetic acid/methanol (1:1) solution, which was mechanically shaken for 24 h. After adjusting the pH of the extracted solution to pH 5, the extracted organolead compounds were derivatized by tetrabutylammonium tetrabutylborate (TATB) and measured with GC-ICPMS. The analytical results of TML and TEL for BCR CRM 605 were 8.22 ± 0.04 mg kg -1 (mean ± standard deviation, n = 3) and 1.12 ± 0.06 mg kg -1 , respectively. The analytical results of TML agreed well with the certified value (7.9 ± 1.2 mg kg -1 ). 2008 © The Japan Society for Analytical Chemistry.
  • Study of environmental impact by coal-fired power station, Koji Yoshizumi, Mituharu Ogaki, Junko Motonaka, Tomoki Yabutani, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, WORLD SCIENTIFIC PUBL CO PTE LTD, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 20, 25-27, 3884, 3889, 2006年10月, 0217-9792, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33751264937&origin=inward, The Tachibana-wan coal-fired power station was constructed on land that was reclaimed using the soil that came from cutting through half of a small island while balancing the amount of soil. The power station has been generating for three years. When the electric utility provider projected the power station, it must have conducted an environmental impact assessment, and studied the environmental preservation measures. Moreover, after the power generation began, an environmental investigation was done as a follow up survey to study the environmental impact by the power station based on its construction and use. To study the environmental impact with smoke, the environmental density of sulfur dioxide around the power station was investigated. It fell below the environmental standards at all the environmental measurement points during this investigation. Moreover, a big difference was not seen before and after the beginning of the power generation and the change in these data was in the normal range. As a result of the environmental impact assessment, the contribution density of the power station was near the quantitative limit and a low value. To study the environmental impact with warm wastewater, the water temperature in the bay was investigated. A big difference was not generally seen before and after the beginning of the power generation though the water temperature slowly rose at the discharge point of the warm wastewater but the change of these data was in the normal range. As for the environmental impact, a clear judgment was difficult only from the environmental investigation. It is necessary to set a new environmental indicator to judge the environmental impact. Moreover, as for a new environmental assessment system, it is necessary to introduce a strategic environmental assessment.
  • Studies on the environmental improvement in Romania, Mitsuharu Ogak, Koji Yoshizumi, Junko Motonaka, Junko Motonaka, Tomoki Yabutani, Yumi Nakamoto, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, WORLD SCIENTIFIC PUBL CO PTE LTD, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 20, 25-27, 4243, 4248, 2006年10月, 0217-9792, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33751267968&origin=inward, In Romania, the communist planned economy system was in place for 42 years but ended due to a revolution in 1989. An environmental administration was started 1990. In order to assist with environment related activities, one of the authors worked in Bucharest for two years from March 2002 to March 2004 as a JICA (Japan International Cooperation Activity) member. One of the most important problems regarding environmental protection in Romania is waste management. In Japan, the regulations and penalties system of waste management have been used for a long time. However, there are many serious problems with the system, such as a decrease in waste disposal facilities and illegally disposed waste. The authors studied a new plan that uses a certification system in order to promote recycling industries. This system is both efficient and inexpensive so it is possible that this method of waste management could be transmitted to Romania.
  • A long pathlength spectrophotometric tegafur detector using a Liquid-Core Waveguide, Shuji Wada, Tomoki Kawatsu, Yuya Hashizume, Tomoki Yabutani, Junko Motonaka, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, WORLD SCIENTIFIC PUBL CO PTE LTD, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 20, 25-27, 4046, 4050, 2006年10月, 0217-9792, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33751284537&origin=inward, A Liquid-Core Waveguide (LCW) detection system for high sensitive determination of tegaful (FT) was developed. In this system the LCW cell was connected to the end of a hollow cathode lump and the other end to a UV spectrometer. A sample solution containing FT was pumped to the LCW cell through a T-shaped connector. A UV absorption of analyte was detected by the UV spectrometer. The configuration of connectors of LCW cell to the light source and the UV detector was designed. Stable and high responses of FT were obtained in a double tube system in which an edge of LCW cell was covered with another tube with large diameter was set in the T-connector. It was found that the UV absorption response of FT obtained in this LCW system depends on the core length and the concentration of FT. The sensitivity of FT obtained by using 65 cm of the LCW cell length was 10-fold higher than that of using 1 cm cell which was often used with a conventional UV-visible detector.
  • Electrochemical evaluation of the polymer modified micro-electrode for metal ions, Junko Motonaka, Tomoki Yabutani, Keiji Minagawa, Yuji Mishima, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, WORLD SCIENTIFIC PUBL CO PTE LTD, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 20, 25-27, 4057, 4062, 2006年10月, 0217-9792, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33751284998&origin=inward, A porous micro-electrode with immobilized poly(methacryroyl alanine) (PMA) was developed for measuring copper(II) ion (Cu2+) and cadmium(II) ion(Cd2+). A porous carbon material was packed into the tip of the platinum micro-electrode with a cavity at the top. The porous micro-electrode was dipped in the coating dimethyl sulfoxide solution with PMA and di-2-ethylhexyl phthalate and dried overnight at room temperature. The immobilized PMA on the porous micro-electrode had predominantly a keto form in the buffer solution. In the enol form a metal complex can be formed under the simultaneous liberation of a proton. Calibration curves for measurements of Cu2+ and Cd2+, the effects of preconcentration condition, scan rate, pH, and temperature, and lifetime of the PMA modified micro-electrode were examined. Under optimal conditions, the responses of sensor were linear in the concentration range 0.0001-1 mmol l(-1) for Cu2+ and 0.01-1 mmol l(-1) for Cd2+. Analytical values determined with the modified electrode were constant for at least 3 month.
  • Recovery and extraction of heavy metal ions using ionic liquid as green solvent, Masami Kumano, Tomoki Yabutani, Junko Motonaka, Yuji Mishima, Yuji Mishima, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, WORLD SCIENTIFIC PUBL CO PTE LTD, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 20, 25-27, 4051, 4056, 2006年10月, 0217-9792, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33751304690&origin=inward, Ionic liquids are expected to replace conventional organic solvents in organic synthesis, solvent extraction and electrochemistry due to their unique characters such as low volatility, high stability and so on. In this work, N,N,-diethyl-N-methyl-N-(2-methoxyethyl) ammonium bis(trifluoromethansulfonyl)iniide was used as an alternative solvent to extract heavy metal ions. As the extracting conditions, the additional effect of 8-hydroxyquinoline (8-HQ) as metal chelating agent into ionic liquids, shaking time and volume ratio were investigated. As extraction efficiency depended on 8-HQ concentration significantly, in order to extract high concentrated metal ions the solubility of 8-HQ into ionic liquid was tested. N,N,-diethyl-N-methyl-N-(2-methoxyethyl) ammonium bis(trifluoromethansulfonyl)imide had good solubility of 8-HQ. Consequently, 5 mu mol of copper, zinc, cadmium and manganese could be completely recovered with 100 mu l of ionic liquid.
  • Serum levels of trace elements and iron-deficiency anemia in adult Vietnamese, Nguyen Van Nhien, Nguyen Cong Khan, Tomoki Yabutani, Nguyen Xuan Ninh, Afework Kassu, Bui Thi Mai Huong, Tran Thanh Do, Junko Motonaka, Fusao Ota, Biological Trace Element Research, Biological Trace Element Research, 111, 1, 9, 2006年09月, 0163-4984, 10.1385/BTER:111:1:1, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33748607978&origin=inward, This study was aimed at assessing the serum levels of vitamin A, copper, zinc, selenium, and iron among adult Vietnamese with and without iron-deficiency anemia. Blood was collected from adult Vietnamese living in the midland of northern Vietnam. One hundred twenty-three subjects in the age range 20-60 yr were included in the study. Anemia, where the concentration of hemoglobin in whole blood is less than 120 g/L in females and 130 g/L in males, was found in 30% (37/123) of the study population. The levels of vitamin Aand selenium in the sera of anemic subjects (n ≤ 37) were significantly lower than that in nonanemic group (n ≤ 86). On the other hand, no significant differences were observed in the concentrations of copper and zinc between the two groups. This study was the first to show serum levels of trace elements in adult Vietnamese, providing useful baseline information for further studies. © Copyright 2006 by Humana Press Inc. All rights of any nature, whatsoever, reserved.
  • Alterations in serum levels of trace elements in tuberculosis and HIV infections, A Kassu, T Yabutani, ZH Mahmud, A Mohammad, N Nguyen, BTM Huong, G Hailemariam, E Diro, B Ayele, Y Wondmikun, J Motonaka, F Ota, EUROPEAN JOURNAL OF CLINICAL NUTRITION, NATURE PUBLISHING GROUP, EUROPEAN JOURNAL OF CLINICAL NUTRITION, 60, 5, 580, 586, 2006年05月, 0954-3007, 10.1038/sj.ejcn.1602352, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33744969585&origin=inward, Objective: To evaluate serum concentrations of trace elements in tuberculosis (TB) patients with or with out human immunodeficiency virus (HIV) coinfection before and after anti-TB chemotherapy. Subjects: A total of 155 TB patients, 74 of which were coinfected with HIV, and 31 healthy controls from Gondar, Ethiopia. Methods: Serum levels of copper, zinc, selenium and iron were determined using an inductively coupled plasma mass spectrometer from all subjects at baseline and from 44 TB patients (22 with HIV coinfection) at the end of an intensive phase of anti-TB chemotherapy. Results: Compared with the control group, the concentrations of iron, zinc and selenium were significantly lower (P < 0.05) while that of copper and copper/zinc ratio was significantly higher (P < 0.05) in the serum of TB patients. TB patients with HIV coinfection had significantly lower serum zinc and selenium concentrations and significantly highercopper/ zinc ratio compared to that in TB patients without HIV coinfection (P < 0.05). The serum concentration of zinc had significantly increased at the end of intensive phase of anti-TB chemotherapy in patients without HIV coinfection (P < 0.05). An increase in serum selenium level was observed in TB patients with or without HIV coinfection after therapy. On the contrary, serum copper concentration and copper/zinc ratio declined significantly after anti-TB chemotherapy irrespective of HIV serostatus (P < 0.05). Conclusions: The results indicate that TB patients have altered profile of trace elements in their sera. This warrants the need for further investigations so that strategies for trace elements supplementation can be planned in addition to their potential as diagnostic parameters in monitoring responses to anti-TB chemotherapy.
  • 超好熱菌酵素を素子とするバイオセンサーの開発:ポリアミン関連酵素の機能解析とD-プロリン脱水素酵素機能電極センサーの開発, 郷田秀一郎, 薮谷智規, 櫻庭春彦, 本仲純子, 大島 敏久, 徳島大学工学部研究報告, 徳島大学工学部研究報告, 50, 33, 40, 2005年
  • Removal of phosphate in water to layered double hydroxide, R Nomura, T Mori, E Kanezaki, T Yabutani, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, WORLD SCIENTIFIC PUBL CO PTE LTD, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 17, 8-9, 1458, 1463, 2003年04月, 0217-9792, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0038101456&origin=inward, Layered double hydroxide (LDH) has been used to remove phosphate ion in water as an effective adsorbent of this anion at low concentration. LDH which contains Mg2+ and Al3+ as divalent and trivalent metals respectively was prepared as has been published by many authors. A fixed portion of this LDH was suspended in the weakly basic solution containing phosphate. The suspension was stirred moderately followed by filtration. The concentration of phosphate ion in the filtrate was determined by the molybdenum blue method. The result indicates that the LDH used in this experiment was effective in removing phosphate from water. Furthermore, it was also certified that the phosphate anions removed from water were quantitatively transferred onto the solid of LDH.
  • Electrochemical properties of a thiol monolayers coated gold electrode modified with osmium gel membrane as enzyme sensor, T Yabutani, N Okada, K Maruyama, J Motonaka, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, WORLD SCIENTIFIC PUBL CO PTE LTD, INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 17, 8-9, 1193, 1198, 2003年04月, 0217-9792, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0038440608&origin=inward, The electrochemical behavior of an enzyme sensor for glucose using a gold electrode modified with thiol self-assembled membrane and osmium complex gel as an electron transferring mediator has further been investigated by electrochemical analysis. The gold electrode was initially coated with aminomethanethiol self assembling mono layer membrane(thiol-SAM) and then immobilized with glucose oxidase using poly(vinylpyridine-co-allylaniine) (PVP-co-AA), gel coordinated with osmium bipyridine complexes (GOD/Os-PVP-co-AA gel). The cleaning condition of the surface of the Au electrode prior to coating thiol SAM was optimized for reduction of interference caused by concomitant compounds. It was found that interfering influence was most efficiently reduced in the case of use of the Au electrode immersed into nitric acid. The current ratio with a thiol coated gold electrode modified with Os-PVP-co-AA gel in glucose solution in the presence to absence of ascorbic acid, acetaininophen, and uric acid (ID+I/I-I) was 1.006, 1.014, and 1.018, respectively. The peak current response of glucose in the electrode modified with thiol SAM was dropped to 60 - 98 % as compared with that without thiol SAM.
  • Preparation and properties of a glucose biosensor based on an osmium-complex modified polypyrrole, Junko Motonaka, Tomoki Yabutani, Kenichi Maruyama, Tokuo Shiomi, Norio Tateishi, Yuji Mishima, Bunseki Kagaku, Bunseki Kagaku, 51, 1165, 1170, 2002年01月, 0525-1931, 10.2116/bunsekikagaku.51.1165, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0036925091&origin=inward, A novel glucose sensor base on an osmium-complex modified polypyrrole was prepared and evaluated. Four new-type osmium-complexes ([Os(bpy) 2(py(4)-bpy)]2+/3+, [Os(bpy)2(py(3)-bpy)] 2+/3+, [Os(bpy)2(pyro-pri)Cl]+/2+, and [Os(bpy)2(vi-bpy)]2+/3+) were synthesized, and the kinetic parameters analyzed. A hydrophilic redox polymer with an osmium-complex was modified by electrolytic copolymerization on the surface of a platinum electrode. The effects of the polymer concentration, times of the scan, dissolved oxygen, and concomitant compounds, and a calibration curve for measurements of glucose were analyzed. The catalytic currents of synthesized osmium-complexes were observed. The relationship between glucose and the oxidation current was examined using the sensor under the optimum conditions. A linear relationship was obtained over the range of 0.9-100 mmol dm-3 glucose. It was measured in the presence of ascorbic acid or uric acid. These compounds did not affect the response current. The lifetime of the sensor was also examined. The analytical values were constant for 9 days when the sensor was stored in a pH 7.07 phosphate buffer solution at 4°C.
  • Fractional distributions of major-to-ultratrace elements in coastal seawater and their partitionings in laboratory-made salts as investigated by inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry with aid of membrane- and ultra-filtration techniques, S Ji, T Yabutani, A Itoh, H Haraguchi, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, CHEMICAL SOC JAPAN, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 73, 5, 1179, 1186, 2000年05月, 0009-2673, 10.1246/bcsj.73.1179, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0034046529&origin=inward, The coastal seawater sample was filtered with a membrane filter (pore size 0.45 mu m), and the filtrate was further filtered with an ultrafiltration filter (molecular weight permeation limit of 10000 Da). Then, major-to-ultratrace elements in the particles which remained on the membrane filter, the membrane-filtered seawater, and the ultrafiltered seawater were determined by ICP-AES (inductively coupled plasma atomic emission spectrometry) and ICP-MS (inductively coupled plasma mass spectrometry). From these analytical results, the fractional distributions of each element in the particle, large molecule and small molecule fractions of seawater were estimated, where the distributions of the elements in the large molecule fraction were obtained as the differences between the elemental concentrations in membrane-filtered and ultrafiltered seawaters. Furthermore, laboratory-made salts (Salts I-III) were prepared from original, membrane-filtered, and ultrafiltered seawaters. The concentrations of major-to-ultratrace elements in laboratory-made salts were also determined by ICP-AES and ICP-MS. It was found that alkali metals, alkaline earth metals, oxoanion-forming elements (V, Mo, W, U) and Cd were mostly contained in the small molecule fraction of seawater, and ca. 95-100% of them in salt, except for V, originated from those in the small molecule fraction. More than 50% of Al, Mn, Fe, Co, Ga, Y, rare earth elements (REEs) and Pb were contained as the particle constituents in seawater, but their intakes into salt were less than 50%. In addition, the fractional distributions of the following elements in the large molecule fraction of seawater were: Al 10%, Mn 4%, Fe 2%, Cu 23%, Zn 7%, Y 5%, REEs 3-15%, and Pb 30%. On the other hand, the intake factors of these elements in salt from the large molecule fraction were: Al 40%, Mn 5%, Fe 28%, Cu 20%, Zn 30%, Y 7%, REEs 5-30%, and Pb 55%. The results obtained in the present experiment suggest that the distributions of the elements in natural salt greatly depend on the chemical forms in seawater.
  • Simultaneous multielement determination of hydride- and oxoanion-forming elements in seawater by inductively coupled plasma mass spectrometry after lanthanum coprecipitation, T Yabutani, S Ji, F Mouri, A Itoh, K Chiba, H Haraguchi, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, CHEMICAL SOC JAPAN, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 73, 4, 895, 901, 2000年04月, 0009-2673, 10.1246/bcsj.73.895, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0034094764&origin=inward, The simultaneous multielement determination of trace elements in seawater, especially hydride- and oxoanionforming elements, has been investigated by inductively coupled plasma mass spectrometry with the aid of lanthanum coprecipitation preconcentration. The optimum pH in lanthanum coprecipitation was pH 9.5; at this value, trace elements were well recovered and major constituents of seawater such as Na, Mg, K, and Ca were significantly reduced in the concentrated solutions. The recovery values obtained for V, Cr(III), Mn, As(III), As(V), Se(IV), Y, Sn, Sb(III), Sb(V), W,Bi, and U were more than 85% after lanthanum coprecipitation, while Cr(VI), Se(VI), and Mo(VI) provided poor recoveries of less than 30%. The reproducibility for coprecipitation was within 5% as relative standard deviation. The present method was applied to the determination of trace elements in coastal seawater reference material CASS-3. The analytical values for Mn, As, V, Y,Sb, W, and U were in fairly good agreement with the certified or literature values.
  • Distributions of elements into natural salt from coastal seawater in a natural-salt preparation process, S Ji, T Yabutani, A Itoh, K Chiba, H Haraguchi, BUNSEKI KAGAKU, JAPAN SOC ANALYTICAL CHEMISTRY, BUNSEKI KAGAKU, 49, 2, 111, 119, 2000年02月, 0525-1931, 10.2116/bunsekikagaku.49.111, The distributions of major-to-ultratrace elements into natural salt from coastal seawater in a salt-preparation process were investigated by ICP-AES (inductively coupled plasma atomic emission spectrometry) and ICP-MS (inductively coupled plasma mass spectrometry) with preconcentration using a chelating resin. The coastal seawater samples were collected off-shore near to the Nie coast, where Agehama-made salt is produced by a classical Agehama method. Natural salt was produced from original coastal seawater in the laboratory in a similar manner to the Agehama method. First, the seawater samples were filtered with a membrane filter (pore size of 0.45 mu m), and the elements in the dissolved fraction (filtrate) and in the particulate fraction (particulate on the filter) were determined by ICP-AES and ICP-MS. The analytical results for seawater indicate that alkali elements, alkaline earth elements, and oxoanion-forming elements (V, Mo, W, U) were dominantly in the dissolved fraction, while other elements such as Al, Fe, Pb and rare earth elements were mostly in the particulate fraction. The elements in laboratory-made salt and Agehama-made salt were also determined by ICP-XES and ICP-MS after dissolving them in a 0.1 M HNO3 solution. Although the concentrations of trace elements in laboratory-made salt and Agehama-made salt were almost at the same levels for 27 elements among 34 elements within a factor between ca. 1/5 and 5, Ba, Mn, Cd and Pb in Agehama-made salt were much higher (8-30 fold) in concentration than those in the laboratory-made salt. Based on the experimental results mentioned above, the distributions of major-to-ultratrace elements into natural salt from seawater were discussed, taking into consideration the preparation process of natural salt.
  • Multielement analysis of insoluble particulates in solar salt by ICP-AES and ICP-MS in relation to geochemical consideration, S Ji, T Yabutani, F Mouri, C Kimata, A Itoh, K Chiba, H Haraguchi, BUNSEKI KAGAKU, JAPAN SOC ANALYTICAL CHEMISTRY, BUNSEKI KAGAKU, 48, 10, 897, 908, 1999年10月, 0525-1931, 10.2116/bunsekikagaku.48.897, The multielement determination of major-to-trace elements in insoluble particulates of solar salt was carried out by ICP-AES and ICF-MS. A solar salt sample (30 g) was dissolved in 11 of pure water to adjust its solution salinity to be almost the same as that of seawater. When the solar salt sample solution was filtered using a membrane filter (pore size 0.45 mu m), the residue on the filter was defined as the insoluble particulates and the filtrate as the soluble constituents. The insoluble particulates were decomposed together with the membrane filter by an acid digestion method using HNO3, HF, and HClO4. As a result, 36 elements in the insoluble particulates could be determined at % to sub-mu g g(-1) levels by ICP-AES and ICP-MS. Taking into consideration the present results along with the analytical results for the soluble constituents reported in a previous paper, alkali elements, alkaline earth elements, Ma and Cd were found mainly in the soluble constituents of solar salt, while Al, Ti, V, Fe, Co, Ga, Y Sn, and rare-earth elements (REEs) were found in the insoluble particulates. Iron, Co, Y, Sn, and REEs in the insoluble particulates were partly leached into the acid solution when the solar salt sample was dissolved in a 0.1 M HNO3 solution. Thus, it is considered that these elements are dissolved as colloidal matter adsorbed on particulates in seawater. On the other hand, because Mn, Cu, Zn, and Pb were found in both the insoluble particulates and the soluble constituents, these elements in the insoluble particulates were easily leached in a 0.1 M HNO3 solution. These results indicate that Mn, Cu, Zn, and Pb are contained as acid-soluble forms in the insoluble particulates. Moreover, the relative abundances of the elements normalized to the Al concentrations in the insoluble particulates of solar salt and the marine sediment standard material (NIES No. 12) showed a good linear correlation, which suggests that the insoluble particulates in solar salt are an origin of marine sediment.
  • Multielement determination of trace elements in coastal seawater by inductively coupled plasma mass spectrometry with aid of chelating resin preconcentration, T Yabutani, S Ji, F Mouri, H Sawatari, A Itoh, K Chiba, H Haraguchi, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, CHEMICAL SOC JAPAN, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 72, 10, 2253, 2260, 1999年10月, 0009-2673, 10.1246/bcsj.72.2253, https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0032751036&origin=inward, The multielement determination of trace elements in coastal seawater by inductively coupled plasma mass spectrometry has been investigated with the aid of chelating resin preconcentration. First, each coastal seawater sample (250 ml) was treated with a chelating resin (Chelex 100) at pH 6 for preconcentration of trace elements. After filtration with a glass filter, the resin on the filter was carefully rinsed with 8 ml of 1 M ammonium acetate solution. Then, trace elements adsorbed on the resin were eluted with 6 mi of 2 M HNO3. As a result, the preconcentration factor of 41.7 fold was obtained, with the total concentration of matrix elements (Na, K, Mg, and Ca) less than 200 mg dm(-3). The recovery values were larger than 80% for 22 elements among 29 elements determined. The present method was applied to the determination of trace elements in the coastal seawater certified reference material CASS-S, issued from National Research Council of Canada (NRC), as well as to the coastal seawater sample collected from Tokoname off-shore.
  • Multielement determination of trace elements in river water certified reference materials (JAC 0031, JAC 0032) by ICP-MS and ICP-AES with chelating resin preconcentration, A Itoh, K Iwata, S Ji, T Yabutani, C Kimata, H Sawatari, H Haraguchi, BUNSEKI KAGAKU, JAPAN SOC ANALYTICAL CHEMISTRY, BUNSEKI KAGAKU, 47, 2, 109, 117, 1998年02月, 0525-1931, 10.2116/bunsekikagaku.47.109, The multielement determination of trace elements in river water certified reference materials (JAC 0031 and JAC 0032), issued from the Japan Society for Analytical Chemistry, has been carried out by ICP-MS and ICP-AES. The chelating resin preconcentration method, using Chelex(R) 100, was employed for the enrichment of most trace elements, including rare-earth elements, while some of the elements were determined by direct sample introduction without any pretreatment. As a result, the concentrations of 37 elements in river-water certified reference materials were obtained in the present experiments. concentrations ranged from 1.23x10(-3) gl(-1) for Ca to 1.2x10(-12) g l(-1) for Tm. The analytical values for Ca, Na, Mg, K, Al, B, Fe, Cu, Zn, and Mn were almost in good agreement with the certified values, while that for Cr was not because of poor recovery in preconcentration. In addition, the REE (rare earth elements) distribution pattern of JAC 0031, normalized by the REE concentrations of continental shale, was compared with those of the Lake Biwa surface water and samples from 24 rivers in Japan.
  • Multielement determination of major-to-trace elements in natural solar salt by ICP-AES and ICP-MS after chelating resin preconcentration(共著), Biomedical Research on trace Elements, Biomedical Research on trace Elements, 8, 1, 37, 1997年

その他研究情報

受賞

競争的資金

  • 日本学術振興会, 科学研究費助成事業 基盤研究(C), 過酸化水素・オゾンの発生・分解システムの低環境負荷的分離分析への展開, 薮谷 智規, 山田 洋平, 本年度は、複数の金属を含むランタン共沈からの過酸化水素水溶離時の溶出金属の選択性について調査した。共沈担体としての硝酸ランタンを含む溶液に、金属標準液、金属塩試薬から調製したAl, Ca, Cu, Fe, K, Mn, Mo, Mg, P,V, W, Znを適宜希釈して添加し、アンモニアを添加して水酸化ランタンの沈殿を形成させた。沈殿をろ過後、沈殿を回収したろ紙上にH2O2ーNaOH水溶液を添加し、溶離液中の金属濃度をICP-AESにより定量した。 その結果、溶離液中にMo, V, W, Al以外はほとんど検出されなかった。溶離されたMo, V, Wについてはペルオキソ錯体の形成が寄与しているものと思われる。Alについては水酸化物がアンモニア存在下で難溶性であることと、両性金属であることから、共沈殿相へ移行した後、溶離液の塩基性条件下で液相へ溶出したものと考えられる。Znも同様に両性金属であるが今回の条件下では溶離液中でほとんど検出されなかった。これは、Znが共沈していないこと(Znーアンミン錯体として溶液相で安定)に起因しているものと思われる。さらに、VとMo, Wを分離できる条件を見出しつつある。Vについては、H2O2ーNaOH系において、NaOH低濃度条件ではほとんど溶出せず、一方Mo, Wについては低濃度でも溶出した。このことは、ランタン固相に対する親和性に相関することが考えられるが、その機構については現在調査中である。このことは、複数の金属を含む溶液からのVの単離につながる知見である。V, Mo, Wの溶出率については、最大で50%前後にとどまっており、沈殿と溶離液の接触時間を増加させる条件の探索、溶離液量の最適化を行う必要があるものと思われる。
  • 日本学術振興会, 科学研究費助成事業 基盤研究(C), 新規タンパク結晶場としてのフィルター孔の活用とその構造解析・分離デバイスへの展開, 山田 洋平, 薮谷 智規, 鈴木 良尚, タンパク質結晶成長場及びX線回折実験用試料固定材としてトラックエッチドメンブレンフィルター(TEMF)を利用した.TEMF切片をリゾチームの結晶化溶液に浸漬することで,孔内で成長した結晶を得た.結晶を含むTEMFをX線回折装置にマウントし,単一孔内の結晶から回折像を得た.その結果,2.1Å分解能程度の回折強度データを得た. また,タンパク質結晶を鋳型にした材料合成について検証した.まず,グルタルアルデヒドで架橋したタンパク質結晶を各種溶媒(塩基,酸,有機溶媒)に浸漬し,その安定性を評価した.次いで,無機酸化物の結晶内部への導入操作を行い,TEMを用いて結晶内部での元素分布を確認した.
  • 日本学術振興会, 科学研究費助成事業 基盤研究(C), 分離分析を活用する副反応進行下での平衡反応解析法の確立, 高柳 俊夫, 薮谷 智規, キャピラリーゾーン電気泳動法(CZE)の分離分析を活用することにより,水溶液一相系において速度論反応等の副反応の進行下で目的となる迅速な平衡反応の解析法の確立を目的とした.CZEでは比較的遅い反応により生成する物質は分離される一方,迅速な平衡にある化学種は加重平均の電気泳動移動度を測定できる点に本研究の特徴がある. 紫外光により分解するハロペリドール,酸性条件下で分解性を有するヘキサメチレンテトラミン,プラバスタチン,熱により分解するブプロピオン,ヒドロクロロチアジドについて,分解生成物の共存下においても目的物質の電気泳動移動度の測定を通して,それら目的物質の酸解離定数を決定することに成功した.
  • 日本学術振興会, 科学研究費助成事業 若手研究(B), 過酸化水素・オゾンの非残留性に着目した金属の高度分離・回収・精製法の創成, 薮谷 智規, 過酸化水素・オゾンの非残留性に着目した金属の高度分離・回収・精製法に関する研究を実施した。共沈法は金属の分離、濃縮に利用される方法である。申請者は微量成分を濃縮した共沈担体に溶離液に過酸化水素を適用した。その結果、ランタン水酸化物共沈殿から共沈担体が溶出させることなくモリブデン、タングステンなどが溶出可能であった。また、ペルオキシ化合物の一種である過酢酸を利用した鉄鋼試料の溶解についても実施し、鉄鋼試料の効果的な溶解が可能であることを示した。
  • 日本学術振興会, 科学研究費助成事業 基盤研究(C), 超好熱菌の新規色素依存性デヒドロゲナーゼの探索と機能性電極素子への利用, 櫻庭 春彦, 薮谷 智規, 大島 敏久, 色素依存性デヒドロゲナーゼ(dye-DH)は、バイオセンサーの素子としての利用が期待できる。しかし常温菌由来の酵素は総じて不安定であり、応用開発は遅れている。一方、超好熱菌には安定性の高いdye-DHが存在する。本研究では、超好熱菌のゲノム情報に基づきdye-DHの探索を行った。その結果、新規D-フェニルアラニンデヒドロゲナーゼ、3タイプのD-乳酸デヒドロゲナーゼ、L-プロリンデヒドロゲナーゼ(LPDH)を見出し、これらの酵素化学的性質を明らかにした。さらに、LPDHについては結晶構造解析に成功した。また、数種の酵素を用いて電極に固定化し、センサー素子としての有用性を確認した。
  • 日本学術振興会, 科学研究費助成事業 基盤研究(C), ポリエーテルによる包摂とイオン会合との相乗効果に基づく水系分離分析法の開発, 高柳 俊夫, 金田 隆, 薮谷 智規, 本研究では環状ポリエーテル及びポリエーテル系の非イオン界面活性剤を用い,ポリエーテルの分子認識能,疎水性の双方の機能を水系溶媒中でのイオン会合反応と相乗的に活用した.擬均一系水溶液で分離分析を行うためにキャピラリー電気泳動法を活用し,フェニルアルキルアンモニウムの包摂反応,アルキルピリジニウム,アルキルイミダゾリウムのミセル結合反応を解析した.また,環状ポリエーテルの包摂によるアルカリ金属イオンの疎水性増加をテトラフェニルボレート系イオンとの水溶液内イオン会合反応で実証した.
  • 日本学術振興会, 科学研究費助成事業 挑戦的萌芽研究, 非強酸・非窒素系溶媒を活用した低環境負荷的希少元素リサイクル法の開発, 薮谷 智規, 安澤 幹人, 倉科 昌, 鈴木 良尚, 過酸化水素は酸素と水素から成り分解すれば水と酸素となることから精製の観点から見ると理想的な溶媒である。この過酸化水素溶離液中の金属含有量をプラズマ分光法で測定し回収率を算出した。その結果、30種以上含む金属溶液からV, Mo, W, Nb, Taを高選択的に回収可能であった。これらの元素に共通する点は、オキソアニオン形成元素であるとともに過酸化水素と容易に反応する元素である。また、焼却飛灰への適用を試みたところ、V, Mo, Wの良好な回収率を得た。
  • 日本学術振興会, 科学研究費助成事業 基盤研究(C), 耐熱性酵素を用いたアミノ酸センサーの高機能化, 本仲 純子, 大島 敏久, 櫻庭 春彦, 薮谷 智規, アミノ酸と健康との関わりは深く、生体内アミノ酸濃度が肝炎などの指標として利用されている。酵素を電極上に固定化した酵素電極は小型かつ簡易に選択的な分析が可能である。酵素固定電極は高価な酵素を繰り返し利用可能であり、基質を添加するのみで分析できる。しかし、一般的に常温菌由来の酵素は環境変化に弱く、電極作製過程、長期使用時などの酵素の失活が問題となる。近年では酵素電極の耐久性の向上を目的とした研究が行われており、極限環境微生物 (超好熱菌、超好酸菌、超好アルカリ菌など)由来の酵素を識別素子として酵素電極に適用する試みが行われている。これらの極限環境微生物由来の酵素は環境の変化に対して耐性があり、センサの利用可能環境の拡張が可能となるため、非常に注目されている。 そこで、耐熱性酵素を用いたD-アミノ酸の高選択性を有する長期安定な酵素センサーの構築を行った。Pyrobaculum islandicum 由来のD-プロリン脱水素酵素(D-Proline dehydogenase ; D-Pro DH)を寒天で固定した電極を作製した。その結果、尿中のD-アミノ酸の定量に成功した。さらに、感度向上を目指して、電極固定剤にカーボンナノチューブゲルを利用したセンサを試作した。その結果、感度が10倍向上した。
  • 日本学術振興会, 科学研究費助成事業 基盤研究(B), 超好熱菌の色素依存性脱水素酵素複合体の機能、構造解析と応用, 大島 敏久, 櫻庭 春彦, 藪谷 智規, 櫻庭 春彦, 藪谷 智規, 超好熱菌由来のアミノ酸や有機酸などの種々の還元物質を電子供与体(基質)とし、ジクロロフェノールインドフェノールなどの人工色素を電子受容体とする色素依存性脱水素酵素複合体の生化学、分子生物学的機能解析とX線結晶構造解析と、そのバイオセンサーや酵素燃料電池への応用開発を行った。その結果、これまで不分明であった色素依存性アミノ酸脱水素酵素機能と構造の解明に大きな成果を見出した。また、超好熱菌由来の安定性の高い色素依存性脱水素酵素を素子とする電気化学的検出が可能な新規アミノ酸センサーの開発に成功した。さらに、色素依存性L-プロリン脱水素酵素を素子とする新規なプロリン酵素電池の開発に成功した。
  • 日本学術振興会, 科学研究費助成事業 若手研究(B), 金属クラスター/生体分子集積化薄膜の創製および高感度バイオセンサへの応用, 電解重合法は膜厚の制御、微小部への修飾、生体分子などを包括的に固定化可能などの利点がある。18年度までに我々は、Os錯体導入ピロールによるリージェントレス(Reagentless sensor)センサーの開発を行った。その際に、ピロールのN原子上のメチレン鎖がセンサ感度と長期安定性に影響を及ぼす現象を確認した。さらに、酵素包括固定とReagentlessセンサーをより簡便かつ安価に行うための電解重合モデル分子としてアミノ酸導入ピロールに着目した。アミノ酸は、静電的・疎水的性質が異なる様々な種類が存在していること、取得が容易であることなどの特長を有している。本研究では、アミノ酸導入ピロールの酵素の固定へ及ぼす影響を評価するため、ピロールにアミノ酸としてアラニン、グルタミン酸をそれぞれ導入し、グルコースオキシダーゼ(Gox)の固定化を行った。 アミノ酸導入ピロール/ピロール共重合ポリマー内への酵素の包括固定を確認できた。さらに、アラニン導入ポリピロール電解重合膜を電極上に合成し、アラニン構造内のカルボキシル基にオスミウム錯体を導入した。グルコース存在下で電流応答が増加したことから、電解重合膜内に固定化されたオスミウム錯体が電子移動を媒介しているものと判断された。さらに、電解重合時のアミノ酸導入ピロールとピロールモノマー混合比、濃度、測定pHなどを最適化した。また、他の酵素の固定(Horseraddish Peroxidase)の電解重合膜内への固定にも成功した。
  • 日本学術振興会, 科学研究費助成事業 基盤研究(B), 世界中緯度地域における環境保全のための化石燃料燃焼時排出成分の実態調査, 本仲 純子, 村上 理一, 金崎 英二, 森賀 俊広, 中林 一朗, 本年度はルーマニア(ブカレスト市)と日本(徳島市)で大気から採取された採取された粉じん試料の分析を行った。その結果、大気粉じんに含まれる重金属の組成に明瞭な地域差が確認された。特徴は鉛の濃度がブカレストで高く、日本で低いものであった。本試料採取時には、ルーマニアは欧州で残された数少ない有鉛ガソリン消費国の一つであったため(2005年1月より全面使用禁止)高くなったものと思われる。また、日本では貴金属元素が相対的に高い結果が得られている。これは、ガソリンの無鉛化とともに、排ガス浄化用の貴金属触媒起因と考えられる。 また、得られた大気環境のデータの解析に利用するためルーマニアにおける環境調査および行政の対応等の精密な調査を行った。とくに化石燃料を大量に消費し、温暖化ガスを排出する産業であるセメント産業の環境改善に関する取り組みに対して調査を実施した。 これに加え、環境試料からの金属抽出に関する論文を提出した。これは、低揮発性かつ高イオン伝導性を有するイオン性液体を金属抽出用溶媒として利用するものである。さらに、窒素酸化物および大気富裕粒子状物質の削減を指向した貴金属触媒を開発した。 以上の成果は、複数の国際学会(内一つはルーマニアで開催された国際会議の基調講演に選出)および国際誌への掲載がなされた。
  • 日本学術振興会, 科学研究費助成事業 基盤研究(B), 焼却飛灰中の重金属の溶出と回収・分離法の開発, 冨田 太平, 杉山 茂, 加藤 雅裕, 藪谷 智規, 1.焼却飛灰の組成分析と飛灰からの重金属の溶出 蛍光X線分析装置(平成15年度購入)によって試料飛灰の元素分析を行った。Ca,K,Naが多く含まれ、Znは0.5mol%,CuとPbは約0.03mol%と微量含まれることが分かった。溶離液として塩酸、硝酸、酢酸を用い、単通法とバッチ法によってCu,Zn,Pbの溶出挙動を調べた。 何れの方法においても、Znは用いた全ての溶離液によってよく溶出された。一方、Pbは0.25M,0.5Mの塩酸および0.25Mの硝酸によってよく溶出された、しかし、0.5Mの硝酸および0.1-0.5Mの酢酸によっては僅かに溶出された。Cuは塩酸よりも硝酸や酢酸によってよく溶出された。 2.中空糸膜と水溶性キレートポリマーを用いた金属イオンの回収速度 本回収法において、金属イオン(Cu(II)、La(III))の膜透過速度を求めた。総括物質移動係数に対する液流速および撹絆速度の影響を考慮して求めたCu(II)およびLa(III)のポリアクリロニトリル製中空糸膜内有効拡散係数はそれぞれ3.3×10^<-9>m^2.s^<-1>、2.5×10^<-9>m^2.s^<-1>であった。水溶性キレートポリマー溶液中に浸した中空糸膜の中空部に金属イオン溶液を流す単通法において、内径0.4mm,外径1.2mm、長さ110cmの中空糸膜では滞留時間約5分で98%以上のイオンの除去が可能であることが分かった。 3.金属イオンの固定化 リン酸-水素ナトリウム、カリウム、マグネシウム、およびカルシウムを用いると、短時間に水溶液中から2価の重金属であるPb,Cd,Co,Cuを固定化回収することができた。また、カルシウムヒドロキシアパタイトによって4価のTiおよびZrを固定化回収できることを示した。

愛媛大学教員活動実績

教育活動(B)

担当授業科目(B01)

  • 2019年, 前期, 学部, 産業技術調査
  • 2019年, 前期, 学部, プロジェクト実践演習
  • 2019年, 前期, 学部, 科学英語Ⅰ
  • 2019年, 前期, 学部, 紙産業セミナーⅠ
  • 2019年, 前期, 学部, 産業イノベーションセミナーⅡ
  • 2019年, 前期, 学部, 分析化学Ⅰ


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