Analysis of Residual Pesticides (No. 1: in Soybeans) Using Triple Quadrupole LC/MS/MS

Introduction

With a recent increase in the number of regulated pesticides, more effective methods for simultaneous analysis of residual pesticides in food are required. QuEChERS, which was introduced by the United States Department of Agriculture (USDA) in 2003, is known as a quick and simple pretreatment method and approved as an official method by AOAC and CEN. This method requires no special instruments for extraction of pesticides, but the contaminants that cannot be completely removed by means of purification procedures may affect accurate quantitative analysis. In such cases, sample dilution or review of the purification process is also required. This article introduces an example of the analysis of 158 pesticides among those specified in the Multi-residue Method I and II for Agricultural Chemicals by LC-MS (Agricultural Products) by measuring these pesticides in the sample solutions pretreated using the QuEChERS method, resulting in good recovery.

June 25, 2020 GMT