Determination of 266 pesticide residues in apple juice by matrix solid-phase dispersion and gas chromatography-mass selective detection
作者： Xiao-Gang Chu , Xiao-Zhong Hu , Hui-Yuan Yao
DOI: 10.1016/J.CHROMA.2004.12.003
关键词: Gas chromatography–mass spectrometry 、 Matrix (chemical analysis) 、 Extraction (chemistry) 、 Pesticide residue 、 Gas chromatography 、 Sample preparation 、 Residue (complex analysis) 、 Chromatography 、 Solid phase extraction 、 Chemistry
摘要: A macro matrix solid-phase dispersion (MSPD) method was developed to extract 266 pesticides from apple juice samples prior gas chromatography-mass selective detection (GC-MSD) determination. 10 g mixed with 20 diatomaceous earth. The mixture transferred into a glass column. Pesticide residues were leached 160 mL hexane-dichloromethane (1:1) at 5 mL/min. Two hundred and sixty-six divided three groups detected by GC-MSD under ion monitoring. proposed takes advantage of both liquid-liquid extraction conventional MSPD methods. Application illustrated the analysis 236 produced in Shaanxi province China mainland this year.
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