取证实验

Drug testing comes in two forms, presumptive and confirmatory. Because of the cost associated with confirmatory testing, a presumptive test is often employed first. While there are various forms of presumptive drug testing, two of the most ... 更多

这是通过两部分测试来确定是否是射击造成的损伤。通过快速的颜色变化以验证硝酸盐和铅的残留。每个套装包含指导手册、足够的用于进行射击残留30项测试的材料。 套装包含： 1 瓶5ml 二苯胺硫酸溶液 UN1830 1 瓶0.025g 玫瑰红酸钠 1 瓶5ml 硝酸铅，0.05M 水溶液 20 个酒精棉签 更多

在材料上使用酚酞进行血液测试。推定的血液测试将不会区分动物和人类的血。这种类型的血的区别，都需要进一步的血清学检查。模拟血检套装包括说明书、血液标准和完成30项试剂检查。 套装包含： 2 瓶25ml 酚酞，2 % 溶解液 UN1814 2 瓶25ml 普通酒精 UN1170 1 瓶50ml 过氧化氢，3 %溶解液 5 条标准条 50 个棉拭子 更多

The Forensic Chemistry of Who Done it? Lab sets up the following scenario: Use your forensic techniques to solve the crime of the missing frogs from the biology classroom. Four possible suspects have been identified by authorities. Use ... 更多