Solid phase microextraction as an efficient method for characterization of the interaction of pesticides with different soil types

Journal of the Brazilian Chemical Society

Ðurović, Rada D.¹  Ignjatović, Ljubiša M.¹  Institute of Pesticides and Environmental Protection, Belgrade, Serbia¹  University of Belgrade, Belgrade, Serbia¹  Umiljendić, Jelena S. Gajić¹  Cupać, Svjetlana B.¹ 

关键词: solid phase microextraction;    pesticides;    soil;    multiresidue method;   

DOI  :  10.1590/S0103-50532010000600007

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

A solid phase microextraction (SPME) method for simultaneous determination of 20 pesticides belonging to various pesticide groups in soil samples was developed. Extraction conditions, such as fibre type, desorption temperature and time, extraction time and NaCl content were investigated. Detection and quantification were done by gas chromatography-mass spectrometry (GC-MS). The results indicate that most of the studied pesticides were more strongly sorbed by soil that has higher organic matter and/or clay content. Relative standard deviation (RSD) values for multiple analysis of soil samples fortified at 30 µg kg-1 of each pesticide were below 19%. Limits of detection (LOD) for all the compounds studied were less than 5 µg kg-1.

【 授权许可】

Unknown