食用菌中18种有机氯类农药残留物的检测方法验证
Validation of the Detection Methods of 18 Organochlorine Pesticide Residues in Edible Fungi
王娟 1孙达锋 2游金坤 1邓雅元 1曹燕妮 3杨璐敏 1华蓉2
作者信息
- 1. 中华全国供销合作总社昆明食用菌研究所,云南昆明 650221
- 2. 中华全国供销合作总社昆明食用菌研究所,云南昆明 650221;云南省食用菌产业发展研究院,云南昆明 650221
- 3. 云南省食用菌产业发展研究院,云南昆明 650221
- 折叠
摘要
使用改进的QuEChERS方法进行前处理,利用气相色谱法分析测定了食用菌中18种有机氯类农药残留物,通过标准曲线、检出限和定量限,食用菌样品空白加标后测定回收率,计算精密度等进行方法学验证.结果表明,18种有机氯类农药标准曲线线性良好,相关系数R2为0.991 75～0.999 98,加标回收率为69.1％～91.5％,相对标准偏差范围为0.7％～4.1％,检出限和定量限均能满足有机氯类农药残留的最大限量检测要求.
Abstract
18 organicchlorine pesticide residues in edible fungi were analyzed and determined by gas chromatography using an improved QuEChERS method.The method was validated by standard curves,detection limit and quantification limi,blank addi-tion of edible fungi samples,determination of recovery rate,and precision calculation.The results showed that the standard curves of 18 organochlorine pesticides had good linearity,with a correlation coefficient R2 of 0.991 75-0.999 98,a recovery rate of 69.1％-91.5％,and a relative standard deviation(RSD)range of 0.7％-4.1％.Both the detection limit and quantification limit can meet the maximum limit detection requirements for organochlorine pesticide residues.
关键词
食用菌/有机氯类农药/气相色谱法/QuEChERS方法/方法验证Key words
edible fungi/organochlorine pesticides/gas chromatography method/QuEChERS method/method validation引用本文复制引用
基金项目
云南省省市一体化专项(202402AN360003)
出版年
2024
NETL
NSTL
万方数据