Forensic analysis of explosives using isotope ratio mass spectrometry (IRMS) - Discrimination of ammonium nitrate sources

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Show simple item record Benson, SJ Lennard, CJ Maynard, P Hill, DM Andrew, AS Roux, C 2012-02-02T05:36:36Z 2009-06
dc.identifier.citation Science and Justice, 2009, 49 (2), pp. 73 - 80
dc.identifier.issn 1355-0306
dc.identifier.other C1UNSUBMIT en_US
dc.description.abstract An evaluation was undertaken to determine if isotope ratio mass spectrometry (IRMS) could assist in the investigation of complex forensic cases by providing a level of discrimination not achievable utilising traditional forensic techniques. The focus of the research was on ammonium nitrate (AN), a common oxidiser used in improvised explosive mixtures. The potential value of IRMS to attribute Australian AN samples to the manufacturing source was demonstrated through the development of a preliminary AN classification scheme based on nitrogen isotopes. Although the discrimination utilising nitrogen isotopes alone was limited and only relevant to samples from the three Australian manufacturers during the evaluated time period, the classification scheme has potential as an investigative aid. Combining oxygen and hydrogen stable isotope values permitted the differentiation of AN prills from three different Australian manufacturers. Samples from five different overseas sources could be differentiated utilising a combination of the nitrogen, oxygen and hydrogen isotope values. Limited differentiation between Australian and overseas prills was achieved for the samples analysed. The comparison of nitrogen isotope values from intact AN prill samples with those from post-blast AN prill residues highlighted that the nitrogen isotopic composition of the prills was not maintained post-blast; hence, limiting the technique to analysis of un-reacted explosive material. Crown Copyright © 2009.
dc.language eng
dc.relation.isbasedon 10.1016/j.scijus.2009.04.005
dc.title Forensic analysis of explosives using isotope ratio mass spectrometry (IRMS) - Discrimination of ammonium nitrate sources
dc.type Journal Article
dc.parent Science and Justice
dc.journal.volume 2
dc.journal.volume 49
dc.journal.number 2 en_US
dc.publocation Harrogate, UK en_US
dc.identifier.startpage 73 en_US
dc.identifier.endpage 80 en_US SCI.Chemistry and Forensic Sciences en_US
dc.conference Verified OK en_US
dc.for 0399 Other Chemical Sciences
dc.personcode 0000016451
dc.personcode 980952
dc.personcode 960382
dc.percentage 100 en_US Other Chemical Sciences en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Ammonium nitrate
dc.description.keywords Explosives
dc.description.keywords IRMS
dc.description.keywords Isotope ratio mass spectrometry
dc.description.keywords Stable isotopes
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Forensic Science
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc false
utslib.collection.history Closed (ID: 3)
utslib.collection.history School of Chemistry and Forensic Science (ID: 339)

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