[Comparative analysis fo heroin]. / Sravnitel'noe issledovanie geroina.

A protocol for comparative analysis of heroin making use of chromatographic methods and infra-red spectroscopy is presented.

[The analysis of the methylenedioxy derivatives of amphetamine]. / ANaliz metilendioksiproizvodnykh amfetamina.

Methods for analysis of narcotics belonging to amphetamine methylene dioxy derivatives (MDD) are reviewed. The characteristics of these agents, their metabolism, and methods used for their detection and identification (TLC, GC, HPLC, GC/MS) are described. Methods for their extraction from biological objects (human urine and hair) are described. Efficacy of MDMA and MDEA from the urine by different extractants is assessed. The data demonstrate different potentialities for detection and identification of amphetamine MDD, including those in biological specimens (human urine and hairs), by numerous chromatographic methods.

[The use of a method of solid-phase extraction for sample preparation in the identification of unknown substances by IR spectroscopy]. / Primenenie metoda tverdofaznoi ékstraktsii dlia probopodgotovki pri identifikatsii neizvestnykh veshchestv metodom IK-spektroskopii.

Identification of synthetic narcotics is difficult because they do not possess any apparent individual signs and the specimens are contaminated with various fillers and additives, which rules out investigations by infrared spectroscopy, widely used in expert practice. Use of solid-phase extraction during preparation of samples helps prepare highly purified samples which can be further identified by IR spectroscopy. The authors present the protocol of identification of unknown substances and recognition of narcotics and describe methods for identification of some confiscated narcotics (methadone, MDA, phencyclidine, methaqualone, codeine, ethylmorphine, cocaine, etc.).