硅藻法医检验方法改进  

Optimization of forensic diatom testing methods

作　　者：王如武 张丽华 邱越 张阳文 史斌 Wang Ruwu;Zhang Lihua;Qiu Yue;Zhang Yangwen;Shi Bin(Institute of Criminal Science and Technology of Criminal Investigation Detachment of Kunming Public Security Bureau,Klunming,Yiunnan,650500;School of Public Health of Kunming Medical Universiy,Kunming,650500)

机构地区：[1]昆明市公安局刑事犯罪侦查支队刑事科学技术研究所,云南昆明650500 [2]昆明医科大学法医学院,云南昆明650500

出　　处：《中国法医学杂志》2024年第4期492-495,499,共5页Chinese Journal of Forensic Medicine

摘　　要：《法庭科学硅藻检验技术规范微波消解-真空抽滤-显微镜法》(GA/T 1662-2019)是目前法医硅藻学检验使用的标准方法,笔者在使用此方法检验过程中,发现存在组织消解不完全、硅藻碎片多、抽滤时间过长、滤过膜电热板烘烤后不平整、样本干燥度不够等问题。经过实验室的不断尝试,对检验过程的一些参数进行了调整,得到了较好的预期效果。改良方法通过添加恒温水浴锅和真空干燥箱两个基础设备,使各实验更容易实现。"Forensic Science-Technical specifications for diatom inspection-Microwave digestion-vacuum filtration-microscopy"(GA/T 1662-2019)is currently the standard method used in forensic diatom testing.During the use of this method,the author found problems such as incomplete tissue digestion,excessive diatom fragments,too long suction filtration time,uneven baking of the filter membrane electric heating plate,and insufficient sample dryness.After continuous experimentation in the laboratory,some parameters of the inspection process were adjusted and the better expected results were achieved.The improved method only adds two basic equipment:a constant temperature water bath and a vacuum drying oven,making each experiment easy to realize.

关 键 词：GA/T 1662-2019 法医硅藻学 检验 优化 

分 类 号：D919.2[医药卫生—法医学]