Optimization of forensic diatom testing methods
10.13618/j.issn.1001-5728.2024.04.022
- VernacularTitle:硅藻法医检验方法改进
- Author:
Ruwu WANG
1
;
Lihua ZHANG
;
Yue QIU
;
Yangwen ZHANG
;
Bin SHI
Author Information
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
- Keywords:
GA/T 1662-2019;
Forensic diatomology;
Inspection;
Optimization
- From:
Chinese Journal of Forensic Medicine
2024;39(4):492-495,499
- CountryChina
- Language:Chinese
-
Abstract:
"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.
