苯扎氯铵对玫瑰红酸钠试剂的影响研究  

Study on the effect of benzalkonium chlorides on sodium rhodizonate reagent

作　　者：高梦林 李轶昳[2] 沈尧[1,2] 陈蕊丽 蔡能斌[3] GAO Meng-lin;LI Yi-yi;SHEN Yao;CHEN Rui-li;CAI Neng-bin(School of Investigation,People’s Public Security University of China,Beijing 100038,China;Institute of Forensic Science of China,Beijing 100038,China;Shanghai Key Laboratory of Physicial Evidence,Shanghai 200083,China)

机构地区：[1]中国人民公安大学侦查学院,北京100038 [2]公安部物证鉴定中心,北京100038 [3]上海市现场物证重点实验室,上海200083

出　　处：《应用化工》2022年第6期1655-1659,共5页Applied Chemical Industry

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(2017JB014);上海市刑事科学技术研究院现场物证重点实验室开放课题(2021XCWZK02)。

摘　　要：研究了弹着痕迹中射击残留物铅离子的显色剂玫瑰红酸钠溶液的改进配方。采用高光谱成像仪并且利用反射率值探讨苯扎氯铵(BACs)对玫瑰红酸钠溶液稳定性的增强作用和对显色度的影响,以及其浓度和光照条件对抗氧化效果的影响。结果表明,间隔4 d后仍有络合物生成,溶液稳定性大大增强,达到延长玫瑰红酸钠试剂的有效性的效果,且浓度为2.8%时及在避光条件下效果最佳;在显色度方面,验证其虽显色度增强效果不明显,但也不会影响检验时的显色效果,是适宜的抗氧化剂的选择,为弹着痕迹的铅离子临场化学显现提供了便利。This paper investigated the improved formulation of sodium rosinate solution as a colour developer for shooting residues of lead ions in bullet traces.Using a hyperspectral imager and reflectance to explore the effect of benzalkonium chlorides(BACs)on the stability of the sodium rhodizonate solution and its effect on colour redering,as well as the effect of its concentration and light conditions on the antioxidant effect.The results showed that the complexes was still formed after 4 d,and the stability of the solution was greatly enhanced,which prolonged the effectiveness of the sodium rhodizonate reagent,and the best effect was achieved at a concentration of 2.8%and under light-proof conditions.In terms of colour rendering,it was verified that benzalkonium chloride could not significantly enhance the colour rendering,but it could not affect the colour rendering during testing,and it is a suitable choice of antioxidant to facilitate the clinical chemical manifestation of lead ions in bullet traces.

关 键 词：铅残留物 玫瑰红酸钠 苯扎氯铵 稳定性 

分 类 号：TQ047.7[化学工程] O641.4[理学—物理化学]