On the use of IRMS in forensic science: proposals for a methodological approach

Details

Serval ID
serval:BIB_9812EEE3FAC5
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
On the use of IRMS in forensic science: proposals for a methodological approach
Journal
Forensic Science International
Author(s)
Gentile N., Besson L., Pazos D., Delémont O., Esseiva P.
ISSN
0379-0738
Publication state
Published
Issued date
10/2011
Peer-reviewed
Oui
Volume
212
Number
1-3
Pages
260-271
Language
english
Abstract
The flourishing number of publications on the use of isotope ratio mass spectrometry (IRMS) in forensic science denotes the enthusiasm and the attraction generated by this technology. IRMS has demonstrated its potential to distinguish chemically identical compounds coming from different sources. Despite the numerous applications of IRMS to a wide range of forensic materials, its implementation in a forensic framework is less straightforward than it appears. In addition, each laboratory has developed its own strategy of analysis on calibration, sequence design, standards utilisation and data treatment without a clear consensus.Through the experience acquired from research undertaken in different forensic fields, we propose a methodological framework of the whole process using IRMS methods. We emphasize the importance of considering isotopic results as part of a whole approach, when applying this technology to a particular forensic issue. The process is divided into six different steps, which should be considered for a thoughtful and relevant application. The dissection of this process into fundamental steps, further detailed, enables a better understanding of the essential, though not exhaustive, factors that have to be considered in order to obtain results of quality and sufficiently robust to proceed to retrospective analyses or interlaboratory comparisons.
Keywords
Isotope ratio mass spectrometry, IRMS, Forensic application, Stable isotope, Methodological framework, Process, Methodology, Source inference, Illicit drug, Ignitable liquid, Explosive
Create date
29/09/2011 14:45
Last modification date
20/08/2019 15:59
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