Forensic analysis of explosives using isotope ratio mass spectrometry (IRMS)-Part 2: forensic inter-laboratory trial: bulk carbon and nitrogen stable isotopes in a range of chemical compounds (Australia and New Zealand)

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dc.contributor.authorBenson, SJen_AU
dc.contributor.authorLennard, CJen_AU
dc.contributor.authorMaynard, Pen_AU
dc.contributor.authorHill, DMen_AU
dc.contributor.authorAndrew, ASen_AU
dc.contributor.authorNeal, Ken_AU
dc.contributor.authorStuart-Williams, Hen_AU
dc.contributor.authorHope, Jen_AU
dc.contributor.authorWalker, GSen_AU
dc.contributor.authorRoux, Cen_AU
dc.date.accessioned2010-04-19T23:34:57Zen_AU
dc.date.accessioned2010-04-30T05:08:47Zen_AU
dc.date.available2010-04-19T23:34:57Zen_AU
dc.date.available2010-04-30T05:08:47Zen_AU
dc.date.issued2010-01en_AU
dc.date.statistics2010-01en_AU
dc.description.abstractComparability of data over time and between laboratories is a key issue for consideration in the development of global databases, and more broadly for quality assurance in general. One mechanism that can be utilized for evaluating traceability is an inter-laboratory trial. This paper addresses an inter-laboratory trial conducted across a number of Australian and New Zealand isotope ratio mass spectrometry (IRMS) laboratories. The main objective of this trial was to determine whether IRMS laboratories in these countries would record comparable values for the distributed samples. Four carbon containing and four nitrogen containing compounds were distributed to seven laboratories in Australia and one in New Zealand. The laboratories were requested to analyze the samples using their standard procedures. The data from each laboratory was evaluated collectively using International Standard ISO 13528 (Statistical methods for use in proficiency testing by inter-laboratory comparisons). "Warning signals" were raised against one participant in this trial. "Action signals" requiring corrective action were raised against four participants. These participants reviewed the data and possible sources for the discrepancies. This inter-laboratory trial was successful in providing an initial snapshot of the potential for traceability between the participating laboratories. The statistical methods described in this article could be used as a model for others needing to evaluate stable isotope results derived from multiple laboratories, e.g., inter-laboratory trials/proficiency testing. Ongoing trials will be conducted to improve traceability across the Australian and New Zealand IRMS community. © 2010, Wiley-Blackwell. The definitive version is available at www3.interscience.wiley.comen_AU
dc.identifier.citationBenson, S. J., Lennard, C. J., Maynard, P., Hill, D. M., Andrew, A. S., Neal, K., Stuart-Williams, H., Hope, J., Walker, G. S., & Roux, C. (2010). Forensic analysis of explosives using isotope ratio mass spectrometry (IRMS)-Part 2: forensic inter-laboratory trial: bulk carbon and nitrogen stable isotopes in a range of chemical compounds (Australia and New Zealand). Journal of Forensic Sciences, 55(1), 205-212. doi:10.1111/j.1556-4029.2009.01242.xen_AU
dc.identifier.govdoc1565en_AU
dc.identifier.issn0022-1198en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleJournal of Forensic Sciencesen_AU
dc.identifier.pagination205-212en_AU
dc.identifier.urihttp://dx.doi.org/10.1111/j.1556-4029.2009.01242.xen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3230en_AU
dc.identifier.volume55en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectCrime detectionen_AU
dc.subjectIsotope ratioen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectCarbon isotopesen_AU
dc.subjectNitrogen isotopesen_AU
dc.subjectExplosivesen_AU
dc.titleForensic analysis of explosives using isotope ratio mass spectrometry (IRMS)-Part 2: forensic inter-laboratory trial: bulk carbon and nitrogen stable isotopes in a range of chemical compounds (Australia and New Zealand)en_AU
dc.typeJournal Articleen_AU
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