title: The gas-liquid chromatography of carboxylic acid esters of the urinary 11-deoxy-17-oxo steroids. Determination as n-butyrates.
abstract: 1. The gas-liquid-chromatographic separations of the acetate, propionate, n-butyrate, isobutyrate and n-valerate esters of androsterone, aetiocholanolone and dehydroepiandrosterone were studied on a 1% neopentyl glycol sebacate column. The n-butyrate, isobutyrate and n-valerate esters were well resolved. 2. The three steroids derived from hydrolysed urinary 17-oxo steroid conjugate extracts were analysed by gas-liquid chromatography after conversion into their n-butyrate esters. The results were compared with independent determinations involving chromatography on alumina.
mesh_terms: D015068:17-Ketosteroids / Q000652:urine*; D000085:Acetates / Q000652:urine*; D000535:Aluminum; D000738:Androsterone / Q000652:urine*; D002087:Butyrates / Q000652:urine*; D002845:Chromatography; D002849:Chromatography, Gas; D003687:Dehydroepiandrosterone / Q000652:urine*; D005043:Etiocholanolone / Q000652:urine*; D010087:Oxides; D011422:Propionates / Q000652:urine*; D014631:Valerates / Q000652:urine*
chemical_list: D015068:17-Ketosteroids; D000085:Acetates; D002087:Butyrates; D010087:Oxides; D011422:Propionates; D014631:Valerates; D003687:Dehydroepiandrosterone; D005043:Etiocholanolone; D000738:Androsterone; D000535:Aluminum