【摘要】 <正> 杀虫脒(Chlordimeform)是一种高效有机氮杀螨剂,主要用于防治水稻、棉花害虫,有可能残留于某些农产品中。关于杀虫脒残留的分析方法,国外大多采用气相色谱氮磷检测器(TID)和离子阱检测器(ITD)检测,国内很多色谱仪均未配备这两种检测器。Geissbuehler Huns等。将杀虫脒水解为4—氯邻甲苯胺须用特制的提取器提取,再经重氮化制备碘衍生物,最更多还原

【Abstract】 Chlordimeform is decomposed to 4-chloro-o-methyl-aniline in basic solution.The degradation product is brominated in acidic solution with saturated bromine water.The residual chlordimeform is determined by gas chromatograph with ECD.The detection limit is 2μg/kg and the recoveries and relative standard deviation range are 81.4-104.4% and 2.1-5.3% respectively.The temperature,time and volume of saturated bromine water required in bromination are discussed.更多还原