title: Determination of 10 alpha-methoxy-9,10-dihydrolysergol, a nicergoline metabolite, in human urine by high performance liquid chromatography.
abstract: A specific method for the determination of 10 alpha-methoxy-9,10-dihydrolysergol, a nicergoline metabolite (metabolite 2), in urine is described. Metabolite 2 was well separated from the urine components on a reversed phase column, Hypersil ODS 5 microns, using an acetonitrile:pH 3.5 phosphate buffer (40:60, v/v) as the mobile phase at a flow rate of 1 mL/min. UV detection was set up at 220 nm. After addition of a known amount of lysergamide as the internal standard, the compounds were extracted from alkalysed urine on a pre-packed glass column (Extrelut 1) with dichloromethane. With 0.5 mL urine, concentrations down to 0.56 mumol/L could be determined.
authors.affiliation: Laboratoires Ciba-Geigy, Biopharmaceutical Research Centre, Rueil-Malmaison, France.
authors.forename: A
authors.initials: A
authors.lastname: Sioufi
authors.forename: N
authors.initials: N
authors.lastname: Sandrenan
authors.forename: J
authors.initials: J
authors.lastname: Godbillon
mesh_terms: D002851:Chromatography, High Pressure Liquid; D006801:Humans; D008237:Lysergic Acid / Q000031:analogs & derivatives* / Q000652:urine; D009530:Nicergoline / Q000378:metabolism*; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet
chemical_list: C074961:10-methoxy-9,10-dihydrolysergol; D008237:Lysergic Acid; D009530:Nicergoline