Fisher, W T Use of precoated, flexible thin-layer sheets in drug screening. [electronic resource] - Journal of chromatographic science May 1972 - 303-11 p. digital Publication Type: Journal Article ISSN: 0021-9665 Standard No.: 10.1093/chromsci/10.5.303 doi Subjects--Topical Terms: Alkaloids--bloodAmphetamine--bloodBarbiturates--bloodBuffersChromatography, Thin Layer--instrumentationHeroinHumansHydrogen-Ion ConcentrationHydrolysisMethodsMorphine--urineSubstance-Related Disorders