【摘要】 通过初步实验筛选出0.5%硝酸银乙醇溶液与1%茚三酮乙醇溶液对渗透性客体显现效果最佳,然后配置茚三酮、硝酸银乙醇混合液对牛皮纸、白纸、报纸三种客体表面上遗留的新鲜和陈旧汗潜指印进行显现。结果表明硝酸银、茚三酮乙醇混合显现液能显现纸张等渗透性客体上的新陈汗潜手印,且与单个试剂显现效果比较,混合显现液显现效果优于单个试剂的显现效果。更多还原

【Abstract】 Through preliminary experiments,0.5% silver nitrate ethanol solution and 1% ninhydrin ethanol solution were selected to develop the permeable guest with the best effect. Then the mixture of ninhydrin and silver nitrate ethanol was used to develop the fresh and old sweat latent fingermarks left on the surface of the guest including brown paper,white paper and newspaper.The results showed that the mixed developing solution of silver nitrate and ninhydrin ethanol could develop new latent sweaty fingermarks on permeable objects such as paper,and the developing effect of the mixed developing solution was better than that of the single reagent.更多还原