Pesticide analysis in agricultural products by GC-MS/MS using STQ method

Abstract

As a method to detect pesticide residues in agricultural products, we evaluated the pretreatment of agricultural product samples by the solid-phase extracton technique with QuEChERS （STQ）method followed by GC-MS/MS with large-volume injection using a stomach-type glass-lined injector. This method satisfied the target criteria of recovery（70-120％）and the standard deviation of repeatability（RSD＜25％）in 238-282 pesticides found in six types of agricultural products.