摘要
采用０．５３ｍｍ宽口径毛细管柱，在带氮磷检测器（ＮＰＤ）的气相色谱上一次快速测定多种有机磷（ＯＰ）农药，结果表明，当添加ＯＰ农药水平在０．１２ｍｇ／ｋｇ～０．７０ｍｇ／ｋｇ时，７种ＯＰ农药的回收率范围为７９．８％～１０１．２％，变异系数为３．４％～８．２％，方法检测限达１．１μｇ／ｋｇ～６．３μｇ／ｋｇ。无水硫酸钠对提高ＯＰ农药在提取过程中的口收率有重要作用。
The identification of seven OP pesticides in poisoned food samples by gas chromatography (GC) with 0. 53 mm bore capillary column was conducted. The result showed that the recovery rates were 79. 8 %-101. 2 %, and coefficient of variance only 3. 4 %-8. 2 %. As the additive level range of these pesticides were 0. 12 mg/kg-0. 70 mg/kg, the detective limits were 1. 1μg/kg -6. 3μg/kg. Na2SO4(anhydrous) is a useful reagent for high recovery rate of OP pesticides.
出处
《广西科学》
CAS
1996年第3期19-21,共3页
Guangxi Sciences
基金
广西区卫生厅1992年青年科学基金
关键词
气相色谱
食物中毒
有机磷农药
样品
测定
wide bore capillary column, gas chromatography, food poisoning, organophosphorus pesticides
