藿香中有机磷农药残留气相色谱检测方法的建立  

Establishment of Gas Chromatographic Method for Determination of Organophosphorus Pesticide Residues in Agastache rugosa

作　　者：董理 DONG Li(Zhanjiang Institute for Food and Drug Control,Zhanjiang 524000,China)

机构地区：[1]湛江市食品药品检验所,广东湛江524000

出　　处：《食品安全导刊》2024年第27期115-117,125,共4页China Food Safety Magazine

摘　　要：目的:建立一种气相色谱检测藿香中12种有机磷农药残留的方法。方法:采用QuEChERS前处理技术结合凝胶渗透色谱(Gel Permeation Chromatography,GPC)净化,气相色谱测定,外标法定量。结果:12种有机磷农药在0.005~0.200 mg·L^(-1)线性关系良好,相关系数R^(2)≥0.999,检出限为0.005~0.010 mg·kg^(-1)。平均回收率为75%~106%,相对标准偏差为1.08%~15.00%。结论:该方法有机溶剂用量少、回收率高、精确度好,可用于藿香中12种有机磷农药残留的快速检测。Objective:To establish a gas chromatography method for detecting 12 organophosphorus pesticide residues in Agastache rugosa.Methods:QuEChERS pretreatment technology combined with gel permeation chromatography(GPC)purification,gas chromatography determination and external standard quantitative method were used.Result:The linear relationship of 12 organophosphorus pesticides was good between 0.005 and 0.200 mg·L^(-1),with a correlation coefficient R^(2)≥0.999 and a detection limit of 0.005 mg·kg^(-1) to 0.010 mg·kg^(-1).The average recovery rate is 75%to 106%,and the relative standard deviation is 1.08%to 15.00%.Conclusion:This method has low organic solvent dosage,high recovery rate,and good accuracy,and can be used for rapid detection of 12 organophosphorus pesticide residues in Agastache rugosa.

关 键 词：藿香 有机磷农药残留 气相色谱 

分 类 号：TS207.53[轻工技术与工程—食品科学] O657.71[轻工技术与工程—食品科学与工程]