Microwave-assisted extraction versus Soxhlet extraction in the analysis of 21 organochlorine pesticides in plants

被引：103

作者：

Barriada-Pereira, M ^{[1
]}

Concha-Graña, E ^{[1
]}

González-Castro, MJ ^{[1
]}

Muniategui-Lorenzo, S ^{[1
]}

López-Mahía, P ^{[1
]}

Prada-Rodríguez, D ^{[1
]}

Fernández-Fernández, E ^{[1
]}

机构：

[1] Univ A Coruna, Dept Analyt Chem, Inst Environm, E-15071 La Coruna, Spain

来源：

JOURNAL OF CHROMATOGRAPHY A | 2003年 / 1008卷 / 01期

关键词：

extraction methods; microwave-assisted extraction; plant materials; environmental analysis; pesticides; organochlorine compounds;

D O I：

10.1016/S0021-9673(03)01061-6

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A method to determine 21 organochlorine pesticides in vegetation samples using microwave-assisted extraction (MAE) is described and compared with Soxhlet extraction. Samples were extracted with hexane-acetone (1:1, v/v) and the extracts were cleaned using solid-phase extraction with Florisil and alumine as adsorbents. Pesticides were eluted with hexane-ethyl acetate (80:20, v/v) and determined by gas chromatography and electron-capture detection. Recoveries obtained (75.5-132.7% for Soxhlet extraction and 81.5-108.4% for MAE) show that both methods are suitable for the determination of chlorinated pesticides in vegetation samples. The method using microwave energy was applied to grass samples from parks of A Coru (n) over tildea (N.W. Spain) and to vegetation from the contaminated industrial area of Torneiros (Pontevedra, N.W. Spain). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：115 / 122

页数：8

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