氨基黑10B显现血手印实验研究

Experimental Study of Blood Fingerprint Showed by Amido Black 10B

用氨基黑10B溶液显现法对白色塑料、白色瓷砖、透明玻璃、红色塑纸不同非渗透性客体上的血手印显现,研究了氨基黑10B的浓度、醋酸浓度、酸种类、手印遗留时间对显现效果的影响。实验结果表明:氨基黑10B的浓度为1.2%,醋酸溶液浓度为12%,15天以内的血用印显现效果较好。

The blood Fingerprint on different non-permeability objects such as white plastic, white tile, transparent glass, red plastic paper was shown by amino black 10B solution method. The show result effect of the concentration of amido black 10B, acid concentration, acid type, fingerprints left time was stuied. The re- suits show ed that： the amido black 10B concentration of 1.2% ,acetic acid concentration of 12%, within 15 days show the blood fingerprint better.