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Clinical Chemistry 43: 180-181, 1997;
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(Clinical Chemistry. 1997;43:180-181.)
© 1997 American Association for Clinical Chemistry, Inc.

Technical Briefs

Interference of Nicotine Metabolites in Cotinine Determination by RIA

Piergiorgio Zuccaroa, Simona Pichini, Ilaria Altieri, Mirella Rosa, Manuela Pellegrini and Roberta Pacifici

Clin. Biochem. Dept., Istituto Superiore di Sanità, V.le Regina Elena 299, 00161 Rome, Italy
a author for correspondence: fax ++ 39 6 4461961

Cotinine (COT), a major metabolite of nicotine (NIC), has been used as a biomarker in many studies of active and passive smoking (1)(2)(3)(4). Methods of analysis for COT in biological fluids include gas chromatography, gas chromatography–mass spectrometry, HPLC, HPLC–mass spectrometry, and immunoassays (5)(6)(7)(8)(9)(10). In particular, the RIA developed for COT and NIC by Langone and Van Vunakis (11) was the method reported by the International Agency for Research on Cancer (IARC) for determination of these analytes in several biological matrices (12)(13).

In the description of the assay (11), no mention was made about cross-reactivity of anti-NIC and anti-COT antibodies with trans-3'-hydroxycotinine (THOC) and cotinine glucuronide (COT-G). Indeed, these two compounds were found to be the most abundant metabolites of NIC in urine of smokers (14). Other studies, however, have investigated the cross-reactivity of the anti-COT antiserum with THOC and other metabolites in an ELISA (15).

The objective of this study was to investigate the cross-reactivity of the anti-COT and anti-NIC antisera with THOC and COT-G in the RIA (11)(12)(13). We also used urine samples from active and passive smokers to compare data from the RIA with data obtained by HPLC.

. . . [Full Text of this Article]


References




The following articles in journals at HighWire Press have cited this article:


Home page
 Clin. Chem.Home page
T. R. Gray, R. Magri, D. M. Shakleya, and M. A. Huestis
Meconium Nicotine and Metabolites by Liquid Chromatography-Tandem Mass Spectrometry: Differentiation of Passive and Nonexposure and Correlation with Neonatal Outcome Measures
Clin. Chem., December 1, 2008; 54(12): 2018 - 2027.
[Abstract] [Full Text] [PDF]

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 Clin. Chem.Home page
P. Jatlow, S. McKee, and S. S. O'Malley
Correction of Urine Cotinine Concentrations for Creatinine Excretion: Is It Useful?
Clin. Chem., November 1, 2003; 49(11): 1932 - 1934.
[Full Text] [PDF]


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