2010 Fiscal Year Final Research Report
Development of Facile and Rapid Method for Determination of Ultra trace Amount of Heavy Metal Ions in Soil Aiming at Secure Society
| Project/Area Number |
20350070
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
IKI Nobuhiko 東北大学, 大学院・環境科学研究科, 准教授 (50282108)
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| Co-Investigator(Kenkyū-buntansha) |
HOSHINO Hitoshi 東北大学, 大学院・環境科学研究科, 教授 (20124620)
TAKAHASHI Toru 東北大学, 大学院・環境科学研究科, 助教 (30361166)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 化学計測 / 環境分析 / 土壌汚染 / 重金属 / 簡易分析法 / チアカリックスアレーン |
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| Research Abstract |
This study was aimed at developing a facile and rapid method to determine exchangeable heavy metal ions such as Cd and Pb in soil. In the first step, thiacalix[4] arene was utilized as the extractant to accelerate the leaching processes from 6 h to only 10 min, owing to the complexation ability toward Cd and Pb. This step was followed by quantitative ligand replacement with the thiosemicarbazone ligand, the resulting complex of which was then subjected to kinetic differentiation mode HPLC to enable highly selective and sensitive detection of exchangeable Cd and Pb at the ppb levels without interference from soil matrices.
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