两种铁铬合金电警棍遗留金属颗粒成分分析

目的检测两种电警棍铁铬合金电极遗留金属颗粒的成分,对同一电警棍电击前后遗留金属颗粒成分特征进行分析,对电警棍遗留金属颗粒成分的稳定性、差异性进行评价。方法使用电警棍分别多次摩擦滤纸和电击猪皮,使用碳导电胶带粘取遗留金属颗粒,应用SEM/EDS技术检测颗粒元素成分,并对数据进行统计学分析。结果两种电警棍电击前遗留铁铬合金颗粒及电击后遗留铁铬合金颗粒成分均稳定,存在差异;实验两种电警棍电击后遗留金属颗粒成分分布发生显著变化,除原成分铁铬颗粒外,实验猪皮表面均检出全新成分的铁铬合金颗粒,且两种电警棍电击后产生的全新铁铬颗粒成分稳定无显著差异。结论通过分析两种电警棍铁铬电极电击前后遗留多金属颗粒成分分布特征,可以实现对两种电警棍电极的识别,为人体电警棍损伤的识别与认定提供技术支持和理论依据。

Composition analysis of residual metal particles left by two ferrochrome electric batons

Objective To detect the composition of residual metal particles left by two electric baton ferrochrome electrodes,analize the characteristics of metal particles before and after electric shock with the same electric baton,and evaluate the stability and difference of the composition of metal particles left by eclectric baton.Methods Electric batons were used repeatly to rub against filter papers and discharge on the surface of pig skin,carbon conductive tape was applied to pick up the remaining metal particles,SEM/EDS technology was used to detect the composition of particles,and the data was processed statistically.Results The composition of ferrochrome alloy particle before and after electric shock were stable but different.The composition distribution of metal particles left by two electric batons after electric shock has changed significantly.In addition to the original ferrochrome particles,a brand new type of particle was detected on the surface of the experimental pig skin.And these new particles left by two different electric batons were statistically stable and almost the same.Conclusion By analyzing the distribution feature of polymetallic particles left by two electric baton ferrochrome electrodes before and after electric shock,the identification of two electric baton electrodes can be realized,which provides technical support and theoretical basis for the identification of human body electric baton injury.