气相色谱-串联质谱法检测杜仲叶中有机氯农药残留  

Determination of Organochlorine Pesticide Residues in leaves of Eucommia ulmoides by Gas Chromatography-Tandem Mass Spectrometry

作　　者：安金琼 AN Jinqiong(Pharmacy Department,Gulang County People’s Hospital of Gansu Province,Gulang 733100,China)

机构地区：[1]甘肃省古浪县人民医院药剂科,甘肃古浪733100

出　　处：《食品安全导刊》2024年第20期99-101,114,共4页China Food Safety Magazine

摘　　要：目的:建立加速溶剂萃取-气相色谱-串联质谱方法检测甘肃省出产的杜仲叶中11种有机氯农药残留情况。方法:杜仲叶用正己烷加速溶剂提取,利用HLB固相萃取柱净化,采用气相色谱-串联质谱法测定。结果:11种有机氯农药在0.002~0.200 μg·mL^(-1)范围内线性关系良好,3个添加水平的平均回收率为70.8%~110.0%,相对标准偏差为2.1%~10.1%(n=6);甘肃省市售的45批杜仲叶有机氯农药检出率13.3%,检出的有机氯含量较低,未超过国家规定的限量。结论:该方法快速、简便,能满足杜仲叶中有机氯农药残留的检测要求。Objective:An accelerated solvent extraction-gas chromatography-tandem mass spectrometry method was established for the determination of 11 organochlorine pesticides in leaves of Eucommia ulmoides from Gansu province.Method:The leaves of Eucommia ulmoides were extracted with n-hexane accelerated solvent,purified by HLB solid phase extraction column,and determined by gas chromatography-tandem mass spectrometry.Result:The linear relationships of 11 organochlorine pesticides were good in the range of 0.002~0.200 μg·mL~(-1).The average recoveries of three additive levels were from 70.8% to 110.0%,and the relative standard deviations were from 2.1% to 10.1% (n=6).The detection rate of organochlorine pesticides in 45 batches of leaves of Eucommia ulmoides for sale in Gansu province was 13.3%,and the content of organochlorine detected was low,which did not exceed the national limit.Conclusion:The method is rapid and simple,and can meet the requirements of detection of organochlorine pesticide residues in leaves of Eucommia ulmoidess.

关 键 词：气相色谱-串联质谱 加速溶剂萃取 有机氯 杜仲叶 

分 类 号：O657.63[理学—分析化学] R284.1[理学—化学]