ENFSI proficiency test program on identification of GSR by SEM/EDX.
ENFSI proficiency test program on identification of GSR by SEM/EDX.
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ENFSI 能力验证计划，通过 SEM/EDX 鉴定 GSR。
DOI：
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发表时间：
2003
影响因子：
1.6
通讯作者：
Lawrence Gunaratnam
中科院分区：
文献类型：
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作者：
L. Niewoehner;H. Wenz;Jan Andrasko;R. Beijer;Lawrence Gunaratnam
在欧洲火器安全倡议“火器”专家工作组的框架内，组织并进行了一次关于扫描电镜/能谱X射线探测和识别火药残留物的能力测试。测试材料由Bundeskriminalamt设计，并由外部公司根据SEM附件的订单生产。要求参与实验室按照其自己的实验室特定的自动GSR颗粒搜索方法和SEM/EDX检测方法，确定试验样品上含PbSbBa颗粒的总数。向所有参与者分发了两个含有合成GSR颗粒的类似样品，以获得关于所得结果中系统误差的更多信息（分层研究），而一个样品仅含有PbSbBa颗粒，第二个样品还受到一些环境颗粒的污染。本报告总结了研究结果以及统计学评价和与先前研究的比较。
Within the framework of the ENFSI Expert Working Group "Firearms," a proficiency test on the detection and identification of GSR by SEM/EDX was organized and performed. The test material was designed by the Bundeskriminalamt and manufactured to order by an external company for SEM accessories. The participating laboratories were requested to determine the total number of PbSbBa-containing particles on the test samples following their own laboratory specific methods of automated GSR particle search and detection by SEM/EDX. Two similar samples with synthetic GSR particles were dispatched to all participants in order to gain additional information on systematic errors within the obtained results (split-level study), whereas one sample was supplied only with PbSbBa particles, and the second one was additionally contaminated with some environmental particles. This report summarizes the results of the study as well as a statistical evaluation and comparison with previous studies.