Synthesis of cross-linked chitosan modified with the glycine moiety for the collection/concentration of bismuth in aquatic samples for ICP-MS determination
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概要
- 論文の詳細を見る
<p>A chelating resin, cross-linked chitosan modified with the glycine moiety (glycine-type chitosan resin), was developed for the collection and concentration of bismuth in aquatic samples for ICP-MS measurements. The adsorption behavior of bismuth and 55 elements on glycine-type chitosan resin was systematically examined by passing a sample solution containing 56 elements through a mini-column packed with the resin (wet volume; I ml). After eluting the elements adsorbed on the resin with nitric acid, the eluates were measured by ICP-MS. The glycine-type chitosan resin could adsorb several cations by a chelating mechanism and several oxoanions by an anion-exchange mechanism. Especially, the resin could adsorb almost 100% Bi(III) over a wide pH region from pH 2 to 6. Bismuth could be strongly adsorbed at pH 3, and eluted quantitatively with 10 ml of 3 M nitric acid. A column pretreatment method with the glycine-type chitosan resin was used prior to removal of high concentrations of matrices in a seawater sample and the preconcentration of trace bismuth in river water samples for ICP-MS measurements. The column pretreatment method was also applied to the determination of bismuth in real samples by ICP-MS. The LOD of bismuth was 0.1 pg ml(-1) by 10-fold column preconcentration for ICP-MS measurements. The analytical results for bismuth in sea and river water samples by ICP-MS were 22.9 +/- 0.5 pg ml(-1) (RSD, 2.2%) and 2.08 +/- 0.05 pg ml(-1) (RSD, 2.4%), respectively.</p>
- Japan Society for Analytical Chemistryの論文
- 2007-10-10
著者
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大島 光子
岡山大学大学院自然科学研究科機能分子化学専攻
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本水 昌二
岡山大学大学院自然科学研究科機能分子化学専攻
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OSHITA Koji
Department of International Conservation, Studies for Cultural Properties, Faculty of Cultural Prope
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OSHIMA Mitsuko
Department of Chemistry, Faculty of Science, Okayama University
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MOTOMIZU Shoji
Department of Chemistry, Faculty of Science, Okayama University
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大島 光子
Department Of Chemistry Faculty Of Science Okayama University
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Noguchi Osamu
Graduate School Of Natural Science And Technology Okayama University
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Motomizu Shoji
Department Of Chemistry Faculty Of Science Okayamauniversity
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本水 昌二^
岡山大学理学部
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Motomizu Shoji
Department Of Chemistry Faculty Of Science Graduate School Of Natural Sciences And Technology Okayam
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大島 光子
岡山大・理
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Oshima Mitsuko
Department Of Analytical Chemistry Faculty Of Science Okayama University
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本水 昌二
岡山大学大学院自然科学研究科
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Motomizu Shoji
Department Of Chemistry And Biochemistry Graduate School Of Natural Science And Technology Okayama U
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NOGUCHI Osamu
Department of Chemistry, Faculty of Science, Okayama University
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Oshita Koji
Department Of International Conservation Studies For Cultural Properties Faculty Of Cultural Propert
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Oshita Koji
Department Of Crystalline Materials Science Graduate School Of Engineering Nagoya University
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Oshima Mitsuko
Graduate School Of Natural Science And Technology Okayama University
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Motomizu Shoji
Dep. Of Chemistry And Biochemistry Graduate School Of Natural Sci. And Technol. Okayama Univ.
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本水 昌二
Department of Chemistry, Faculty of Science, Okayama University
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