QuEChERS-气相色谱质谱法检测蔬菜中的34种农药残留  

Determination of 34 Pesticide Residues in Vegetables With QuEChERS-Gaschromatographic Mass Spectrometry Method

作　　者：张玉美[1,2] 曾红燕[1] 罗靖[2] 吴云[2] 徐买成[2] 

机构地区：[1]四川大学华西公共卫生学院,成都610041 [2]南充市疾病预防控制中心,四川南充637000

出　　处：《预防医学情报杂志》2015年第5期375-378,共4页Journal of Preventive Medicine Information

摘　　要：目的通过对QuEChERS法的改进,建立QuEChERS-气相色谱质谱法检测蔬菜中的34种农药残留的方法。方法通过对提取方法、酸度、盐析试剂、净化试剂等条件因素的改变来分别处理20种蔬菜,并对其中34种农药残留的进行检测。结果方法中各组分的相关系数在0.995 4~0.999 8之间,线性范围为0.5~5.0μg/ml,检出限在0.005~0.025 mg/kg之间,加标回收率在75.7%~112.5%之间,相对标准偏差均在13%以内。结论本法简便、准确、重现性好,可用于蔬菜中大部分农药残留的测定。Objective By improving QuEChERS method to establish the QuEChERS -gaschromatographic mass spectrometry （QuEChERS - GC/MS ） to detect 34 kinds of pesticide residues in vegetables. Methods Through ad）usting the extraction method, acidity, purification reagents etc. , 34 kinds of pesticide residues in 20 kinds of vegetables were detected. Results The coefficient ranged in 0. 9954 - 0. 9998 ; the detection limits ranged in 0. 005 -0. 025mg/kg; the average recovery rate ranged in 75.7% - 112. 5%. The linearity ranged in 0. 5 -5.0/xg/ml and the RSD were within 13%. Conclusion With characteristics of simple, accurate and well ruggedness, this method is suitable for determination of pesticide residues in vegetables.

关 键 词：QuEChERS法 气相色谱-质谱法 蔬菜 农药残留 

分 类 号：R155[医药卫生—营养与食品卫生学]