Analysis of Active Oxon Forms of Nine Organophosphorus Pesticides in Water Samples Using Gas Chromatography with Mass Spectrometric Detection
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概要
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We established a method for the simultaneous quantitative analysis of nine organophosphorus pesticides (OPs) and their active oxon forms in water samples using gas chromatography with mass spectrometric detection with solid-phase extraction (SPE). In this method, the lower limit of detection for the nine oxons ranged from 0.5 to 20 ng/ml. Each calibration curve had good linearity, with correlation coefficients (R^2) greater than 0.991. In comparing three SPE cartridges, the recovery rate of these compounds extracted from water was highly reproducible using a cartridge of packed silica bonded with C_<18>. The limit of quantification ranged from 2.5 to 200 ng/ml at 500-fold concentrations. When the OPs were examined after chlorination treatment to simulate the water treatment process, they decomposed rapidly and were converted to their oxon forms as primary reaction products of chlorination. Under these established analytical conditions, the behavior of oxons formed in the environment and after water treatment can be determined accurately.
- 社団法人日本薬学会の論文
- 2006-06-01
著者
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NAKAZAWA Hiroyuki
Department of Analytical Chemistry, Hoshi University
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NISHIMURA Tetsuji
Division of Environmental Health, National Institute of Health Sciences
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Nishimura Tetsuji
Division Of Environmental Chemistry
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Nishimura Tetsuji
Division Of Environmental Chemistry National Institute Of Health Sciences
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Tahara Maiko
Division of Environmental Chemistry, National Institute of Health Sciences
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Kubota Reiji
Division of Environmental Chemistry, National Institute of Health Sciences
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Kubota Reiji
Division Of Environmental Chemistry National Institute Of Health Sciences
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Tahara Maiko
Dep. Of Analytical Chemistry Hoshi Univ.
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Nakazawa Hiroyuki
Dep. Of Analytical Chemistry Hoshi Univ.
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Tahara Maiko
Division Of Environmental Chemistry National Institute Of Health Sciences
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Nakazawa Hiroyuki
Department Of Analytical Chemistry Faculty Of Pharmaceutical Sciences Hoshi University
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Nakazawa Hiroyuki
Department Of Analytical Chemistry Faculty Of Pharmaceutical Science Hoshi University
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Nishimura Tetsuji
Division of Environmental Chemistry, National Institute of Health Sciences
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