分析测试学报2011，Vol.30Issue(2)：161-166,6.DOI:10.3969/j.issn.1004-4957.2011.02.008
竹笋中40种农药残留的固相萃取/气相色谱-质谱法同时测定
Simultaneous Determination of 40 Pesticides Residue in Bamboo Shoots by GC- MS Method with Solid Phase Extraction
摘要
Abstract
A multiresidue analytical method was developed for the simultaneous determination of 40 pesticide residues in bamboo shoots based on solid phase extraction(SPE) coupled with gas chromatography- mass spectrometry (GC -MS). The pesticide residues in bamboo shoots were extracted with acetonitrile by homogenate extraction technology, concentrated after salting out. The extract was cleaned up on a solid phase extraction column with 500 mg primary secondary amine(PSA), eluted with acetone. The eluate was evaporated to near dryness and redissolved with n-hexane. The analytes were confirmed and determined by GC - MS under selected ion monitoring mode. The results showed that the calibration curves of 40 pesticide residues were linear in the certain concentration range with correlation coefficients of 0. 994 6 -0. 999 8. The average recoveries at three spiked levels were in the range of 68％ - 119％ with relative standard deviations(RSDs) of 1.1％ -20. 0％. The limits of quantitation(LOQs, S/N = 10) of 40 residues were in the range of 0. 01 -0. 05 mg/kg. The proposed method was sensitive and reliable for the determination of 40 pesticide residues in bamboo shoots.关键词
固相萃取/竹笋/农药残留/气相色谱-质谱法Key words
solid phase extraction/ bamboo shoot/ pesticide residue/ GC -MS分类
化学化工引用本文复制引用
王进,岳永德,汤锋,林旭..竹笋中40种农药残留的固相萃取/气相色谱-质谱法同时测定[J].分析测试学报,2011,30(2):161-166,6.基金项目
林业科学技术研究项目(2006-44) （2006-44）
林业标准制修订项目(2008-LY-102) （2008-LY-102）
林业公益专项资助项目(200804014) （200804014）
