在GSR中从原料中进行结构分离. 一个初步的研究研究
Felice Nunziata1, Daniele De Felicis2, Matteo Donghi3
1Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili (STEMS), Via Marconi 4, 80125 Napoli, Italy.
Forensic science international
|January 17, 2024
概括
来自原料原料的含火药残留物 (GSR) 对于东欧和亚洲弹药的法医分析具有重要意义. SbSnHg残留物是排放的原原料的特征,显示出独特的形态和蒸发.
科学领域:
- 法医科学 法医科学 法医科学
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
背景情况:
- 来自原料的含火药残留物 (GSR) 的研究比以为基础的残留物少.
- 目前的ASTM GSR分析标准不涉及原原料残留物.
- 法医对含有Hg的GSR的兴趣仍然存在,用于来自东欧和亚洲的弹药.
研究的目的:
- 来自原料的GSR颗粒的化学组成和内部形态的特征.
- 为了确定含有的GSR的特征元素和结构.
- 在分析条件下,研究GSR粒子中的的行为.
主要方法:
- 从三种不同的原料中分析了GSR颗粒.
- 聚焦离子束/扫描电子显微镜 (FIB/SEM) 用于形态分析.
- 电子束分析以观察的行为.
主要成果:
- 建议SbSnHg残留物作为释放的原料的特征.
- GSR粒子表现出内部的结节和不均性.
- 在电子束下观察到蒸发,归因于隔离和晶格缺陷.
结论:
- SbSnHg残留物是水银原料排放的迹象.
- 这些GSR颗粒中常见的是内部结节等形态特征.
- 水星在GSR中的行为受到粒子形成和晶格结构的影响,导致分析期间潜在的消失.
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