Evaluation of a Headspace Solid-Phase Microextraction Method for the Analysis of Ignitable Liquids in Fire Debris

被引：25

作者：

Fettig, Ina ^{[1
]}

Krueger, Simone ^{[2
]}

Deubel, Jan H. ^{[2
]}

Werrel, Martin ^{[2
]}

Raspe, Tina ^{[2
]}

Piechotta, Christian ^{[1
]}

机构：

[1] BAM Fed Inst Mat Res & Testing, D-12489 Berlin, Germany

[2] BAM Fed Inst Mat Res & Testing, D-12205 Berlin, Germany

来源：

JOURNAL OF FORENSIC SCIENCES | 2014年 / 59卷 / 03期

关键词：

ignitable liquids; cone calorimeter; forensic science; fire debris; solid-phase microextraction; arson analysis; smoke density chamber;

D O I：

10.1111/1556-4029.12342

中图分类号：

DF [法律]; D9 [法律]; R [医药、卫生];

学科分类号：

0301 ; 10 ;

摘要：

The chemical analysis of fire debris represents a crucial part in fire investigations to determine the cause of a fire. A headspace solid-phase microextraction (HS-SPME) procedure for the detection of ignitable liquids in fire debris using a fiber coated with a mixture of three different sorbent materials (Divinylbenzene/Carboxen/Polydimethylsiloxane, DVB/CAR/PDMS) is described. Gasoline and diesel fuel were spiked upon a preburnt matrix (wood charcoal), extracted and concentrated with HS-SPME and then analyzed with gas chromatography/mass spectrometry (GC/MS). The experimental conditions-extraction temperature, incubation and exposure time-were optimized. To assess the applicability of the method, fire debris samples were prepared in the smoke density chamber (SDC) and a controlled-atmosphere cone calorimeter. The developed methods were successfully applied to burnt particleboard and carpet samples. The results demonstrate that the procedure that has been developed here is suitable for detecting these ignitable liquids in highly burnt debris.

引用

页码：743 / 749

页数：7

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