一种定位唾液斑迹的新方法——用于检测唾液的斑点试纸。

A new method for locating saliva stains-spotty paper for spotting spit.

作者信息

Willott G M, Griffiths M

出版信息

Forensic Sci Int. 1980 Jan-Feb;15(1):79-83. doi: 10.1016/0379-0738(80)90198-x.

Abstract

A convenient method of locating saliva stains has been devised. Filter paper covered with blue coloured starch fragments is laid on the material to be tested. Salivary amylase hydrolyses the starch on the areas of paper corresponding to saliva stains, which are then delineated as clear zones whereas negative areas remain speckled with blue particles.

摘要

已设计出一种方便的方法来定位唾液污渍。将覆盖有蓝色淀粉碎片的滤纸放在待测试的材料上。唾液淀粉酶会水解滤纸上与唾液污渍相对应区域的淀粉，这些区域随后会被勾勒为清晰的区域，而阴性区域仍布满蓝色颗粒。