食品中の残留農薬の分析に関する研究(第18報)ガスクロマトグラフィーによる有機りん農薬の系統分析法並びに有機りん農薬の炎光々度型検出器に対する感度に及ぼす水素及び空気流速の影響

概要

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An analytical method for 28 organophosphorus pesticides by flame photometric detector (FPD) gas chromatography was established. Five kinds of liquid phases (10% DC-200,0.5% OV-225,10% QF-1,10% DC-200+15% QF-1,and 5% DC-200+0.5% EPON resin 1009) were employed for the detection of the pesticides. Detection limit of the pesticides which could be separatly detected under each condition was in the range of 0.001 ng (Ethion) to 12.5 ng (2-chloro-1-(2,4,5-trichlorophenyl) vinyl dimethyl phosphate (CVMP)). Combined application of two or more of the operating conditions effected a complete separation of all the pesticides examined from each other on their gas chromatograms. Effect of hydrogen and air flow rates on the response of FPD to the pesticides was examined. Change in both flow rates did not alter the response of most of the pesticides excessively, but in the cases of Dichlorvos, Vamidothion, and CVMP, an extensive alteration in their peak heights was observed. If the hydrogen and air flow rates were controlled to 150-200 and 50-100 ml/min, respectively, all of the pesticides examined could be sensitively detected by FPD gas chromatography.
公益社団法人日本薬学会の論文
1976-04-30