Screening of Carbamates and Ureas in Fresh and Processed Tomato Samples using Microwave-Assisted Extraction and Liquid Chromatography

被引：15

作者：

Paiga, Paula ^{[1
]}

Morais, Simone ^{[1
]}

Correia, Manuela ^{[1
]}

Alves, Arminda ^{[2
]}

Delerue-Matos, Cristina ^{[1
]}

机构：

[1] Inst Super Engn Porto, REQUIMTE, P-4200472 Oporto, Portugal

[2] Univ Porto, Fac Engn, LEPAE Lab Proc Environm & Energy Engn, P-4100 Oporto, Portugal

来源：

ANALYTICAL LETTERS | 2009年 / 42卷 / 02期

关键词：

Carbamates; liquid chromatography; microwave-assisted extraction; Pesticides; tomato; ureas; SOLID-PHASE MICROEXTRACTION; SUPERCRITICAL-FLUID EXTRACTION; GAS-CHROMATOGRAPHY; ORGANOCHLORINE PESTICIDES; MASS SPECTROMETRY; KRESOXIM-METHYL; SOILS; RESIDUES;

D O I：

10.1080/00032710802585717

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学];

摘要：

An analytical method, based on microwave-assisted extraction and liquid chromatography with diode array detection, for the determination of six carbamate and three urea pesticides in fresh and processed tomato samples is described. Significant parameters affecting extraction efficiency were optimized. Under optimum microwave-assisted extraction conditions (20mL acetonitrile, for 10 minutes, at 60C), pesticides were extracted with recoveries ranging from 57.6 to 102% (RSDs7%). Quantification limits between 6.5 and 39.6g/kg were obtained. A total number of 28 different fresh tomato samples and 6 processed tomato products were analysed. Confirmation of suspicious samples was performed by LC-MS.

引用

页码：265 / 283

页数：19

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