[Use of thin layer chromatographic analysis in forensic medical analysis of urine for opiates]

The study results of identifying the opium alkaloids (morphine, codeine and their synthetic analogue heroin) in urine during the forensic chemical examinations by using the method of thin-layer chromatography (TLC) are described. Several solvent systems and chromogenic reagents designed for the TLC analysis of opiates are presented. Solvent systems were defined to separate the opiates (isolated from urine) in Sorbphyl plates; besides, a chromogenic reagents' kit was suggested to detect them in the forensic medical analysis of urine. There is a description of the study method.