title: The use of Bond-Elut for the estimation of serum bile pigments bonded covalently to albumin.
abstract: A simple and precise method has been devised for the quantitation of biliprotein (delta-bilirubin or albumin bound bilirubin) in serum. In the presence of caffeine/benzoate, Bond-Elut (C8, 200 mg) extracts unconjugated and conjugated bilirubin but not pigments that are covalently bonded to albumin which pass through the column and can be quantitated by a standard diazo method. Following elution from the Bond-Elut column with methanol-acetonitrile (50:50, v/v) unconjugated and conjugated bilirubin can be quantitated either as total pigments or individually by HPLC.
mesh_terms: D000818:Animals; D001565:Benzoates / Q000494:pharmacology; D001663:Bilirubin / Q000097:blood*; D002110:Caffeine / Q000494:pharmacology; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006801:Humans; D011485:Protein Binding; D051381:Rats; D012709:Serum Albumin / Q000378:metabolism*
chemical_list: D001565:Benzoates; D012709:Serum Albumin; D002110:Caffeine; D001663:Bilirubin