Development of a procedure for the determination of perfluorocarboxylic acids in sediments by pressurised fluid extraction, headspace solid-phase microextraction followed by gas chromatographic-mass spectrometric determination

被引：45

作者：

Alzaga, R ^{[1
]}

Salgado-Petinal, C ^{[1
]}

Jover, E ^{[1
]}

Bayona, JM ^{[1
]}

机构：

[1] CSIC, IIQAB, Dept Environm Chem, E-08034 Barcelona, Spain

来源：

JOURNAL OF CHROMATOGRAPHY A | 2005年 / 1083卷 / 1-2期

关键词：

sediment; PFCA; PFE; derivatization; HS-SPME; GC-NCI-MS;

D O I：

10.1016/j.chroma.2005.06.036

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A procedure for the determination of perfluorocarboxylic acids (i.e. PFC(7-10)A) in sediment by pressurized fluid extraction (PFE), derivatization, headspace solid-phase microextraction and GC-MS determination in the negative ion chemical ionisation mode was developed. The PFE extraction variables such as solvent composition, number and time per extraction cycle, and extraction temperature were optimised. In the optimum extraction conditions, recoveries exceeding 95 % with a limit of detection and RSDs of 0.5-0.8 ng g(-1) and 15.5-16.8%, respectively, were obtained. The developed analytical procedure was applied to harbour sediments where PFC(8)A and PFC(10)A were detected for the first time at low ppb concentrations (i.e. 8-11 ng g(-1)). (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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