Study of preservation of polydimethylsiloxane/Carboxen solid-phase microextraction fibres before and after sampling of volatile organic compounds in indoor air

被引：19

作者：

Larroque, Virginie

Desaulziers, Valerie

Mocho, Pierre

机构：

[1] Ecole Mines Ales, Lab Genie Environm Ind, F-64053 Pau 9, France

[2] Univ Pau & Pays Adour, Lab Therm Energet & Proc, F-64000 Pau, France

来源：

JOURNAL OF CHROMATOGRAPHY A | 2006年 / 1124卷 / 1-2期

关键词：

SPME; PDMS/Carboxen; VOC; sample preservation; indoor air;

D O I：

10.1016/j.chroma.2006.05.043

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Solid-phase microextraction (SPME) was applied to the on-site analysis of volatile organic compounds (VOCs) in indoor air. The compounds were at trace levels, which complicates analysis and also sample storage. Fibre storage before and after sampling was studied. Several tests were performed, and the best results were obtained for a home-made storage assembly. To avoid contamination by acetone and acetaldehyde, activated carbon was added in the storage housing. Under these conditions, fibres can be stored up to 2 days before use. After sampling, storage of 10 VOCs was evaluated by varying air relative humidity of the air. This parameter was shown to be insignificant for 3 storage days: recoveries for acetaldehyde and acetone were 149 and 176%, respectively, and ranged from 95 to 107% for the other VOCs investigated. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：106 / 111

页数：6

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