Forensic analysis of float glass using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS): validation of a method
Forensic analysis of float glass using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS): validation of a method
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DOI：
10.1039/b606109e
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发表时间：
2006-01-01
影响因子：
3.4
通讯作者：
van der Peijl, Gerard
中科院分区：
文献类型：
--
作者：
Berends-Montero, Shirly;Wiarda, Wim;van der Peijl, Gerard
本研究的目的是发展和验证一种法医学分析的方法。采用激光烧蚀电感耦合等离子体质谱法（LA-ICP- MS）对燕麦片样品进行分析。这项研究分两部分进行。在第一部分中，开发并验证了用于元素分析的程序。通过LA-ICP- MS对燕麦玻璃进行分析，用于将已知来源的碎片与从可疑来源回收的碎片进行比较。元素菜单包括10种元素：钾（K）、钛（Ti）、锰（Mn）、铷（Rb）、锶（Sr）、锆（Zr）、钡（Ba）、镧（La）、铈（Ce）和铅（Pb）。结果表明，该方法可用于玻璃碎片的尺寸小至1毫米（2）与LOD的数量级μ g g（-1）和精密度和准确度为10%的大多数测量元素。在第二部分中对异质性进行了一些实际的分析。燕麦玻璃板是使用在中开发的方法测量的。第一部分。基于这些结果，用于间隔de的重叠的匹配准则。以浓度值+/-两倍的标准偏差为标准，用于法医学比较。燕麦玻璃样品。
The purpose of this study was to develop and validate a method for the forensic analysis of. oatglass using laser ablation inductively coupled plasma mass spectrometry ( LA- ICP- MS). The study was conducted in two parts. In the first part a procedure was developed and validated for the elemental analysis of. oat glass by LA- ICP- MS, for the comparison of fragments from a known source with the recovered fragments from a questioned source. The elemental menu comprises 10 elements: potassium ( K), titanium ( Ti), manganese ( Mn), rubidium ( Rb), strontium ( Sr), zirconium ( Zr), barium ( Ba), lanthanum ( La), cerium ( Ce) and lead ( Pb). It was shown that the method could be used for glass fragment sizes down to 1 mm(2) with LODs in the order of mu g g(-1) and precision and accuracy o10% for most of the measured elements. In the second part the heterogeneity of some actual. oat glass panes was measured using the method developed in the. rst part. Based on these results matching criteria for overlapping of intervals de. ned by the concentration values +/- twice the standard deviation were set for the forensic comparison of. oat glass samples.