Rapid GC-MS Analysis of Pesticide Residues Using Analyte Protectants

被引：9

作者：

Xu, Xiuli ^{[1
,2
]}

Li, Li ^{[1
]}

Zhong, Weike ^{[1
]}

He, Yujian ^{[2
]}

机构：

[1] Chinese Acad Inspect & Quarantine, Beijing 100123, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing, Peoples R China

来源：

ANALYTICAL LETTERS | 2009年 / 42卷 / 16期

基金：

中国国家自然科学基金;

关键词：

SOLID-PHASE EXTRACTION; ACCELERATED SOLVENT-EXTRACTION; GAS-CHROMATOGRAPHIC ANALYSIS; LARGE-VOLUME; SEWAGE-SLUDGE; INJECTION; VEGETABLES; SPLITLESS; FRUIT; FOOD;

D O I：

10.1080/00032710903243646

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学];

摘要：

A multi-residue method was developed to determine pesticides in foods using analyte protectants to compensate for matrix effects. Promising analyte protectants and combinations of these analyte protectants were evaluated for masking active sites in gas chromatography systems. The optimal combination of analyte protectants was determined to be the mixture of polyethylene glycol and olive oil. Calibration curves for analyte protectants in both neat solvents and matrix-matched standards were compared and similar response enhancement was observed. This result suggests a convenient calibration method using a combination of analyte protectants in neat solvent instead of the conventional matrix-matched standards calibration method.

引用

收藏

页码：2578 / 2591

页数：14

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