摘要
建立GC/FPD-固相萃取测定水产品中有机磷农药残留量的分析方法。样品经乙腈均质提取,ENVI-18/PSA组合柱净化,GC/FPD进行测定,以保留时间定性,外标法定量。有机磷农药峰面积与其质量分数有着良好的线性关系,相关系数均大于0.9991,最低检测限为0.01mg/kg,样品回收率为63.2%~104.8%,RSD为1.6%~7.1%。
Established an analytical method for the determination of organophosphorous pesticide residues in aquatic products by GC/FPD-SPE. The sample was extracted by acetonitrile, purified by ENVI-Ig/PSA SPE, detected by GC/FPD, qualitative analysis by the rentention times and quantitation by external standard. The organophosphorous pesticides showed good linearity in a detected concentration range with good correlation coefficient(r 〉 0.999 1), the limit of detection was 0.01 mg/kg, the recoveries were generally 63.2-104.8% with RSD 1.6-7.1%.
出处
《农药》
CAS
北大核心
2009年第6期437-438,441,共3页
Agrochemicals