title: Determination of dihydroergotoxine alkaloids by gas-liquid chromatography.
abstract: A gas-liquid chromatographic (GLC) method has been developed for the separation and determination of dihydroergotoxine alkaloids (dihydroergocristine, dihydroergokryptine and dihydroergocornine), involving quantitative decomposition of the compounds catalysed by a metal surface. GLC was carried out with 2% Dexsil 300 on Gas-Chrom Q as stationary phase, with temperature programming. For the quantitation, phenylbutazone was used as the internal standard.
mesh_terms: D002384:Catalysis; D002849:Chromatography, Gas; D002853:Chromatography, Liquid; D004088:Dihydroergotoxine / Q000032:analysis*; D004877:Ergoloid Mesylates / Q000032:analysis*; D008670:Metals; D010455:Peptides; D010653:Phenylbutazone / Q000032:analysis; D013696:Temperature
chemical_list: D008670:Metals; D010455:Peptides; D004088:Dihydroergotoxine; D004877:Ergoloid Mesylates; D010653:Phenylbutazone