Bagas Christina K, Scadding Rachel L, Scadding Cameron J, Watling R John, Roberts Warren, Ovenden Simon P B
Defence Science and Technology Group, 506 Lorimer Street, Fishermans Bend, Victoria 3207, Australia.
TSW Analytical Pty Ltd., 2/27 Clark Court, Bibra Lake, Western Australia 6163, Australia.
Forensic Sci Int. 2017 Jan;270:46-54. doi: 10.1016/j.forsciint.2016.11.029. Epub 2016 Nov 25.
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 (Mg, Al, Ca, Cr, Mn, Fe, Ni, Cu, Zn, As, Rb, Sr, Mo, Ba and Hg) 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 Co was present at significant levels in Victorian and Sydney specimens only.
蓖麻植株（Ricinus communis）在澳大利亚的许多地区都有野生生长。该植物的种子含有附表1所列化学制剂蓖麻毒素，这是一种II型核糖体抑制蛋白。目前，可用于分析种子以确定来源的分析技术有限。在本研究中，激光烧蚀电感耦合等离子体质谱法（LA-ICP-MS）被用于分析从澳大利亚各地38个地点的68株植物上采集的种子。在所测量的92种元素同位素中，有15种（镁、铝、钙、铬、锰、铁、镍、铜、锌、砷、铷、锶、钼、钡和汞）产生了与所有采集地点相关的数据。使用多元统计分析对数据进行了进一步分析，这有助于识别独特的产地同位素。此外，该分析表明，钴仅在维多利亚州和悉尼的标本中含量显著。
