中文摘要：

建立了固相萃取-气相色谱法同时测定茶叶中16种有机磷农药残留的方法.样品用丙酮超声提取后,经自制的N-丙基乙二胺（PSA）/活性炭固相萃取柱净化,以混合溶剂乙腈/甲苯（V（乙腈）∶V（甲苯）=1∶3）洗脱,采用气相色谱-氮磷检测器（GC-NPD）测定.方法的回收率在62.8%～109.1%之间,相对标准偏差小于14.7%1,6种有机磷农药的检出限在0.01～0.16 mg/kg之间.方法快速简便、经济实用。

英文摘要：

A method for the determination of 16 organophosphorus pesticide residues in tea by Gas Chromatography-Nitrogen Phosphorus Detector（GC-NPD） with ultrasonic extraction was established.Tea samples were extracted with 10 mL of acetone,and then cleaned by homemade PSA/activated carbon SPE cartridge and eluted with acetonitrile-toluene（1∶3,V/V）.16 organophosphorus pesticides were well separated and detected with high repeatability and precision.The recovery rate of the method was between 62.8% and 109.1%.The relative standard deviation was less than 14.7%.The limit of detection of 16 organophosphorus was between 0.01 mg/kg and 0.16 mg/kg.The method is reliable rapid and is,suitable for the analysis of pesticide residues in real samples.