title: Rapid and accurate high-performance liquid chromatographic method for the determination of 3-methylindole (skatole) in faeces of various species.
abstract: A rapid method for the determination of skatole (3-methylindole) in faeces by reversed-phase high-performance liquid chromatography is described. Samples of 0.5 g were extracted with 2 ml of methanol. The extract was purified on Amberlite XAD-8. The lower limit of detection was 2.5 ng per injection (0.2 microgram/g faeces). The mean recovery of skatole was 95%, and the mean coefficients of variation were 7.0% (intra-assay) and 11.8% (inter-assay). Skatole concentrations were clearly lower in faeces from ruminants (average 2.6 micrograms/g for goat, sheep and cattle) than in those from monogastrics. Mean concentrations in human samples were 15.5 micrograms/g, and 10 micrograms/g in mature domestic pigs. An effect of the anabolic status on skatole concentrations in faeces of pigs is likely.
authors.affiliation: University of Hohenheim, Stuttgart, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Dehnhard
authors.forename: H
authors.initials: H
authors.lastname: Bernal-Barragan
authors.forename: R
authors.initials: R
authors.lastname: Claus
mesh_terms: D000818:Animals; D002417:Cattle; D002851:Chromatography, High Pressure Liquid / Q000379:methods* / Q000592:standards / Q000706:statistics & numerical data; D005243:Feces / Q000737:chemistry*; D005260:Female; D006041:Goats; D006801:Humans; D008297:Male; D012016:Reference Values; D012756:Sheep; D012862:Skatole / Q000032:analysis*; D013552:Swine
chemical_list: D012862:Skatole