Analysis of Pesticides in Soil Using Dispersive Solid Phase Extraction Coupled to GC-MS

作者：Tuan Linh Pham; Tien Hung Phan; Thanh Dong Nguyen^*

来源：Soil and Sediment Contamination, 2014, 23(3): 339-352.

DOI：10.1080/15320383.2014.829024

• Agricultural soil
• pesticides
• gas chromatography mass spectrometry

A multi-residue method using dispersive solid phase extraction and gas chromatography with mass spectrometric detection has been developed for determination of trace levels of 103 pesticides, including organophosphate, organochlorine, carbamate, and pyrethroid compounds in agricultural soil. Dispersive solid phase extraction using 10mL of acetonitrile for 3min of extraction time showed satisfactory extraction efficiency. Recoveries of pesticides from fortified agricultural soil samples ranged from 65% to 117% for three different fortified levels of 50, 100, and 500g/kg and relative standard deviations of the recoveries are below 19%. Detection and quantification limits ranged from 1 to 13g/kg and from 3 to 38g/kg, respectively. The proposed method was less time-consuming, safer, and easy to use for routine analysis.

• 出版日期2014-1-1