Jain, N C Thin-layer chromatographic screening and confirmation of basic drugs of abuse in urine. [electronic resource] - Journal of chromatography Dec 1975 - 519-26 p. digital Publication Type: Journal Article Standard No.: 10.1016/s0021-9673(01)98955-1 doi Subjects--Topical Terms: Chromatography, Thin LayerCocaine--analogs & derivativesDextropropoxyphene--analogs & derivativesHumansMass ScreeningMethadone--urineMethaqualone--urineMolecular ConformationPsychotropic Drugs--urineSolventsSubstance-Related Disorders--urine