Abstract：
:The castor bean plant, Ricinus communis, grows wild throughout many regions of Australia. The seeds of the plant contain the schedule 1 chemical agent ricin, a type II ribosomal inhibiting protein. Currently there are limited analytical techniques that can be applied in analysis of the seeds to establish attribution. In this study, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was used for the analysis of seeds collected from 68 plants across 38 locations around Australia. Of the 92 elemental isotopes measured, fifteen (24Mg, 27Al, 44Ca, 53Cr, 55Mn, 57Fe, 60Ni, 65Cu, 66Zn, 75As, 85Rb, 88Sr, 98Mo, 138Ba and 202Hg) yielded data that were relevant to all collection sites. Data were further analysed using multivariate statistical analysis which facilitated the potential for the identification of unique provenance isotopes. Furthermore, this analysis indicated that 59Co was present at significant levels in Victorian and Sydney specimens only.
journal_name
Forensic Sci Intjournal_title
Forensic science internationalauthors
Bagas CK,Scadding RL,Scadding CJ,Watling RJ,Roberts W,Ovenden SPBdoi
10.1016/j.forsciint.2016.11.029subject
Has Abstractpub_date
2017-01-01 00:00:00pages
46-54eissn
0379-0738issn
1872-6283pii
S0379-0738(16)30505-9journal_volume
270pub_type
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