QuEChERS前处理—高效液相色谱仪检测多种蔬菜水果中10种氨基甲酸醋农药残留

探讨运用简便高效的前处理方法要QuEChERS,使用高效液相色谱要柱后衍生荧光法分别测定普通蔬菜水果中10种氨基甲酸酯多类农药的含量。结果表明院10种农药的检出限为0.008～0.010 mg/kg,加标回收率在91.2%～102.0%,相对标准偏差为0.98%～4.90%。此方法选择性强,有机溶剂用量少,准确可靠、准确度和精密度好,比较适合只配备液相色谱仪的基层实验室用于普通蔬菜水果中常用农药多残留快速检测。

The Multi-residues Analysis of 10 Carbamate Pesticides in Fruits and Vegetables with QuEChERS by Liquid Chromatography

The use of QuEChERS which is a simple and efficient pre-treatment methods of muhi-residue analysis of 10 carbamate pesticides in common fruits and vegetables were explored.The results showed that the limits of detection were in the range of 0.008-0.010 mg/kg.The average spiked recoveries ranged from 91.2% to 102.0% with relative standard deviations of 0.98%-4.90%.The calibration curves for 10 carbamate pesticides all had good linear relationships with correlation coefficients 0.999 2-0.999 8.This method was applicable to a wide range, with less organic solvents, reliable, good accuracy and precision and could be used in the primary laboratory with liquid chromatography to carry out rapid detection of pesticide residues in common fruits and vegetables.