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以研究无毒害血手印显现试剂为目标,通过实验研究,确定了考马斯亮蓝显现血手印的新配方,该配方以一定浓度的乙醇水溶液替代了原有配方中有一定毒性的试剂甲醇,并进一步降低了乙酸的用量,使新配方显现液的刺激性气味大大减弱的同时降低了试剂的成本,新配方对光滑非渗透性及半渗透性客体上的血手印具有较好的显现效果,显出的手印纹线清晰、流畅,效果稳定,适合用于现场血手印的显现。
Aiming at the research of non-toxic blood fingerprints developing reagent, a new formula of Coomassie brilliant blue bloodmark fingerprinting was established through experimental research. The formula replaces the methanol with a certain toxicity in the original formula with a certain concentration of ethanol solution and further The dosage of acetic acid is reduced, the irritating smell of the new formulation is greatly reduced, and the cost of the reagent is reduced. The new formula has a better visualization effect on the blood handprints on smooth non-permeable and semi-permeable objects, The handprint lines are clear, smooth and stable. They are suitable for the appearance of blood handprint on site.