摘要
采用固相萃取技术建立一种利用气相色谱法测定柑橘5种有机磷农药的的分析方法。前处理中柑橘中的有机磷农药用乙腈进行提取,固相萃取柱净化,气相色谱火焰光度检测器(FPD)进行定性定量分析。研究发现:5种有机磷农药在浓度范围为0.01~4.0μg/m L时线性良好,5种农残回收率均在83.2%~93.8%,相对标准偏差均小于5%。实验证明该方法前处理操作简单,精密度高、准确度好,可满足柑橘中多种有机磷农药残留的同时分析。
A method for the determination of 5 organophosphorus pesticides in Citrus by gas chromatography was established by solid phase extraction. Before treatment,organophosphorus pesticides in citrus were extracted with acetonitrile,purified by solid-phase extraction column, and analyzed qualitatively and quantitatively by gas chromatography flame photometric detector（ FP D）. The study found that 5 kinds of organophosphorus pesticides had good linearity in the concentration range of 0. 01 ~ 4. 0 μg/m L,5 kinds of pesticide recovery rate was 83. 2 % ~93. 8 %,relative standard deviation was less than 5 %. The experiment proved that the method was easy to operate,high precision and good accuracy,and could satisfy the simultaneous analysis of organophosphorus pesticide residues in citrus.
作者
胡艳
刘健
向莉
李艳丽
HU Yan;LIU Jian;XIANG Li;LI Yan-li(Three Gorges Food and Drug Inspection and Testing Center,Hubei Yichang 443000,China)
出处
《广州化工》
CAS
2018年第12期89-91,共3页
GuangZhou Chemical Industry
作者简介
胡艳（1982-），女，本科，工程师。
