Spectrophotofluorometric method for the microdetection and estimation of morphine and codeine

THE IDENTIFICATION AND DETERMINATION OF LYSERGIC ACID DIETHYLAMIDE IN NARCOTIC SEIZURES

Methods are described by which lysergic acid diethylamide (LSD) can be identified and determined in the presence of heroin, other narcotics and controlled drugs. Thin layer chromatography and an Ehrlich’s-reagent spray is applied to the LSD-containing material. For confirmation, thin layer chromatography after ultra-violet irradiation and acid hydrolysis should be carried out where ergot alkaloids are present. Spectrophotofluorometric analysis of LSD can be used in the presence of heroin, other narcotics and controlled drugs with a standard error of ±2%. If ergot alkaloids are present, thin layer separation, elution and subsequent fluorometric analysis are recommended.

Apparent Concentration Quenching of Morphine Fluorescence

Fundamental fluorescence equations were examined. Deviations from the theoretical were observed by varying the light path length to determine effects on "apparent" fluorescence. It was found that the decrease in emission of morphine solutions with the increase in concentration was caused by absorption effects that prevented excitation of the whole system.