1. College of Forensic Science, Criminal Investigation Police University of China, Shenyang 110035, China;
2. Research Center of Crime Governance in the New Era, Criminal Investigation Police University of China, Shenyang 110035, China
Abstract Bloodstain examination is one of the most common and important forensic evidence identification. Many chemical theories and technologies are involved in the presumptive and confirmatory tests for bloodstains. More specifically, presumptive tests based on catalytic properties of hemoglobin cover the chromogenic or luminous reactions of phenolphthalein, benzidine and its derivatives, leucomalachite green, fluorescein, and luminol; while confirmatory tests based on coordinate properties of heme in hemoglobin cover the crystal formation of hemin and pyridine hemochromogen. Through systematizating the above content, education and teaching concerning analytical chemistry are greatly enriched.
