The detection of pesticide residues in dairy products is an important measure to ensure the quality and safety of dairy products. Currently, QuEChERS (quick, easy, cheap, effective, rugged, safe) is widely used as a sample pretreatment for all existing methods specified in the national standards for the detection of pesticide residues in dairy products. In this paper, we review these methods with a special focus on the principle and advantages of QuEChERS as well as its application in the detection of pesticide residues in dairy products.

This paper summarizes and compares the maximum residue limits for pyrethroid pesticides in milk products in China and several other countries. At the same time, the main factors affecting the accuracy of the determination of pyrethroid pesticide residues in dairy products, including calibration curve fitting and experimental repeatability, are determined through calculation of the measurement uncertainty. Furthermore, it can be argued that the most fundamental influencing factor is the sample pretreatment method.