Utilization of Thin-Layer Chromatography and Enzyme Immunoassay Systems to Screen and Confirm the Presence of Morphine, Codeine, Phencyclidine and Benzoylecgonine

Author： Michalek Raymond W.   Rejent Thomas A.  

Publisher： Oxford University Press

ISSN： 0146-4760

Source： Journal of Analytical Toxicology, Vol.4, Iss.4, 1980-07, pp. : 215-216

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Abstract

Thin-layer chromatography (TLC) and enzyme immunoassay (EMIT) were coordinated to produce unequivocal identification of certain substances. Samples were extracted and subjected to TLC. After development, “positive” spots were scraped from the plate, buffered, centrifuged, and subjected to EMIT. Interferences were not encountered.

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