烟火药检验实验教学改进与设计  

Improvement and Design of Experimental Teaching for Testing Pyrotechnics

作　　者：李宏达[1] 赵鹏程[1] 于汇川 LI Hong-Da;ZHAO Peng-Cheng;YU Hui-Chuan(College of Criminal Science and Technology,Criminal Investigation Police College of China,Shenyang 110035,China)

机构地区：[1]中国刑事警察学院刑事科学技术学院,辽宁沈阳110035

出　　处：《化学教育（中英文）》2024年第8期88-91,共4页Chinese Journal of Chemical Education

基　　金：公安部科技强警基础工作专项(2022JC02);辽宁省应用基础研究计划项目(2023JF12/101300097);沈阳市中青年科技创新人才支持计划项目(RC220480);中国刑事警察学院院级课题(2021KCSZ03,2022XKGJ0105)。

摘　　要：本实验是针对爆炸案件中烟火药的快速、精准判别而设计的,改进了原有实验教材中单一检验方法(扫描电子显微镜/能谱法)信息不完整、误判率高等缺点;引入红外光谱法检验含氧酸盐的种类,对烟火药中氧化剂和还原剂成分进行直接定性分析。双重仪器分析方法提高了检测结果准确性,为诉讼证据提供了技术支撑。本实验的改进,增加了学生的科学创新能力,拓展了学生的综合分析思维,建全了以审判为中心背景下的鉴定规范化意识。This experiment aims to address the scientific issue of rapid and accurate discrimination of pyrotechimc in explosion cases,and improves the shortcomings of incomplete information and high misjudgment rate of single inspection methods(scanning electron microscopy/energy dispersive spectroscopy)in the original experimental textbooks;Introducing infrared spectroscopy to test the types of oxygen-containing salts and conducting direct qualitative analysis of the oxidant and reducing agent components in pyrotechnic compositions.The dual instrument analysis method improves the accuracy of detection results and provides technical support for litigation evidence.The improvement of this experiment has increased students’scientific innovation ability,expanded their comprehensive analytical thinking,and established a standardized awareness of appraisal in the context of trial as the center.

关 键 词：烟火药 扫描电镜/能谱法 傅里叶变换红外光谱法 证据科学 

分 类 号：TQ560.72-4[化学工程—炸药化工] G642.423[文化科学—高等教育学]