气相色谱-串联质谱法同时测定杨桃中的内吸磷、抑霉唑和腈菌唑

Qun ZHANG,Chun-hua LIU,Nan-cun WU,Xiao-fang WU,Gui-hao YIN

Hubei Agricultural Sciences（2015）

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Abstract

建立了杨桃中内吸磷、抑霉唑和腈菌唑同时测定的气相色谱-串联质谱(GC-MS/MS)分析方法.杨桃样品用乙腈匀浆提取、盐析、石墨化碳黑/氨基混合型固相萃取柱净化,乙腈/甲苯(3∶1,V/V)洗脱,浓缩定容,最后通过GC-MS/MS进行分析.农药的添加水平为0.02～0.50 mg/kg时,3种农药的回收率为75.6％～99.0％,相对标准偏差为2.4％～10.4％;内吸磷、抑霉唑和腈菌唑3种农药的定量限分别为0.010、0.020、0.005 mg/kg.该方法能满足杨桃中内吸磷、抑霉唑和腈菌唑3种农药多残留检测的要求.

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