摘要
建立同时测定辣椒中7种有机磷农药残留量的方法。用乙酸乙酯提取，经旋转浓缩后用丙酮定容，直接进样，以HP-1701毛细管色谱柱分离，火焰光度检测器测定。结果表明，7种农药在10min内可很好地分离。样品加标回收率为80．8％～108．8％，方法的相对标准偏差为2．0％～10．7％（n=5）。7种农药的检出限为1．5～7．0μg／kg。
A method for the rapid determination of 7 organophosphorous pesticide residues in capsicum was developed. The samples were extracted by ethyl acetate and analyzed by gas chromatography by using a flame photometric detector. No clean - up step was required. The average recoveries ranged from 80.8% to 108.8% , with the relative standard deviations（RSD） from 2.0% to 10, 7%. The detection limits were lower than 7 μg,/kg for all pesticides.
出处
《化学分析计量》
CAS
2007年第6期25-26,共2页
Chemical Analysis And Meterage
关键词
毛细管气相色谱法
有机磷农药残留
辣椒
capillary gas chromatography, organophosphorous pesticide residues, capsicum
