Comparison of the analysis of beta-blockers by different techniques. Journal of chromatography. B, Analytical technologies in the biomedical and life sciences [J Chromatogr B Analyt Technol Biomed Life Sci] Journal article | | Title | Comparison of the analysis of beta-blockers by different techniques. | | Author(s) | Pujos E, Cren-Olivé C, Paisse O, Flament-Waton MM, Grenier-Loustalot MF | | Institution | Service Central d'Analyse, USR 059, CNRS, 69360 Solaize, France. | | Source | J Chromatogr B Analyt Technol Biomed Life Sci 2009 Oct 17. | | Abstract | In this work we have compared three analytical techniques (ELISA, GC-MS, and LC-MS) for the analysis of 16 beta-blockers: acebutolol, alprenolol, atenolol, betaxolol, bisoprolol, carteolol, labetalol, metipranolol, metoprolol, nadolol, oxprenolol, pindolol, propranolol, sotalol, timolol, and bupranolol. Several sample-preparation methods were optimized for each technique and enabled compounds of interest to be extracted from small urine samples (1-2.5mL). The results enabled us to assess the possibilities and the sensitivity of each technique for application to doping tests. ELISA, whose selectivity is very poor and sensitivity the lowest one, is, nevertheless, useful as a rapid screening method. GC/MS and LC/MS provide confirmation procedures with the identification and quantification of the beta-blockers with good sensitivity, accuracy, precision. The LC-MS analytical procedure allows the determination of the target analytes in the lower ng/mL range (0.53-2.23ng/mL). The methodology was applied to the analysis of beta-blockers in different urines. | | Language | ENG | | Pub Type(s) | JOURNAL ARTICLE
| | PubMed ID | 19879818 |
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