Development of pressurized liquid extraction and cleanup procedures for determination of organochlorine pesticides in soils

被引：47

作者：

Concha-Graña, E ^{[1
]}

Turnes-Carou, MI ^{[1
]}

Muniategui-Lorenzo, S ^{[1
]}

López-Mahía, P ^{[1
]}

Fernández-Fernández, E ^{[1
]}

Prada-Rodríguez, D ^{[1
]}

机构：

[1] Univ A Coruna, Fac Sci, Dept Analyt Chem, E-15071 La Coruna, Spain

来源：

JOURNAL OF CHROMATOGRAPHY A | 2004年 / 1047卷 / 01期

关键词：

pressurized liquid extraction; extraction methods; soil; pesticides; organochlorine compounds;

D O I：

10.1016/j.chroma.2004.06.114

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The scope of this work is the development of a rapid, reliable and sensitive method for the analysis of organochlorine pesticides from soils by pressurized liquid extraction (PLE). The effect of four parameters (temperature, pressure, static time and cell volume) on the extraction efficiency was studied. The great extracting power of the PLE causes the extraction of numerous interfering substances, so a more efficient purification of this extract was necessary. In this work several sorbents have also been assayed to carry out the purification of soil samples: Florisil, silica, alumina, carbon, as well as combinations of them. Finally, the proposed analytical method was validated using a certified reference soil material (CRM804-050) and the results were compared with those obtained by other extraction techniques (Soxhlet and microwave-assisted extraction). (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：147 / 155

页数：9

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