Determination of multiclass pesticide residues in apple juice by gas chromatography-mass spectrometry with large-volume injection

被引：29
|
作者：
Wang, Jian-Hua [1 ]
Zhang, Yi-Bing [1 ]
Wang, Xiu-Lin [1 ]
机构：
[1] Shandong Exit & Entry Inspect & Quarantine Bur, Shandong, Peoples R China
来源：
JOURNAL OF SEPARATION SCIENCE | 2006年 / 29卷 / 15期
关键词：
apple juice; large-volume injection programmed-temperature vaporizer injection; GC-MS; pesticide residue analysis;
D O I：
10.1002/jssc.200500250
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This study presents two GC-MS SIM methods, in combination with large-volume injection programmed-temperature vaporization (LVI-PTV) injection, for the determination of 141 pesticide residues in apple juice. The sample was extracted with ACN, and coextractives were removed with primary/secondary amine sorbent. ACN extract (20 mu L) Was injected into a PTV injection port in solvent vent mode, and the pesticides were determined by GC-MS using retention time locking software. Deuterium-labeled pesticides (surrogate standards) were used for analytical quality control. In the validation experiments, pesticides recoveries were found to be 70-121% with RSDs of 4.6-21% (n = 6).
引用
收藏
页码：2330 / 2337
页数：8
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