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Nicotine and its metabolites: radioimmunoassay for. gamma. -(3-pyridyl)-. gamma. -oxo-N-methylbutyramide. [/sup 125/I]

Journal Article · · Arch. Biochem. Biophys.; (United States)
A radioimmunoassay has been developed for the nicotine metabolite ..gamma..-(3-pyridyl)-..gamma..-oxo-N-methylbutyramide. The sensitivity and specificity of the assay allow the determination of this compound at the picomole level in the presence of several structurally related molecules including nicotine and seven other nicotine metabolites. The assay has been used to characterize the enzyme system present in rabbit liver extract responsible for the conversion of cotinine to the oxoamide, and to measure oxoamide levels in urine, sera, and amniotic fluid of smokers. High-pressure liquid chromatography was used as an independent method to follow the enzymatic oxidation and in conjunction with the radioimmunoassay to analyze the urine samples. (auth)
Research Organization:
Brandeis Univ., Waltham, MA
OSTI ID:
7364239
Journal Information:
Arch. Biochem. Biophys.; (United States), Journal Name: Arch. Biochem. Biophys.; (United States) Vol. 164:2; ISSN ABBIA
Country of Publication:
United States
Language:
English