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Title: A high-pressure liquid chromatographic-enzymatic assay for glycine and taurine conjugates of cholic, chenodeoxycholic and deoxycholic acid in serum. Author: Linnet K. Journal: Scand J Clin Lab Invest; 1982 Sep; 42(5):455-60. PubMed ID: 7156857. Abstract: An assay for glycine and taurine conjugates of cholic, chenodeoxycholic and deoxycholic acid in serum by a high pressure liquid chromatographic-enzymatic system is presented. The bile acids are extracted from serum by a reverse-phase liquid chromatographic process with an octadecylsilane column. The bile acid conjugates are separated on a muBondapak C18 column with methanol/KH2PO4 buffer, 20 mmol/l, pH 5.3 as a mobile phase in less than 30 min at a flow rate of 1.4 ml/min. The bile acid fractions are measured by enzymatic fluorometry using a 3 alpha-hydroxysteroid dehydrogenase-diaphorase system. Recoveries ranged from 82 to 96%, coefficients of variation were from 5 to 15%, and detection limits were from 0.03 to 0.08 mumol/l. Mean serum concentrations ranged from 0.10 to 0.39 mumol/l in the fasting state and from 0.29 to 1.55 mumol/l postprandially in subjects with normal liver function.[Abstract] [Full Text] [Related] [New Search]