title: Detection and separation of the S-adenosylmethionine-decarboxylase inhibitor SAM486A in human plasma and urine by reversed-phase ion-pairing high-performance liquid chromatography.
abstract: A reversed-phase ion-pairing high-performance liquid chromatography method for the detection and separation of SAM486A in human plasma and urine is described. Precipitation of proteins was used for plasma sample preparation. Enrichment of SAM486A on a 5 micro C18 column using 0.05 M NaH(2)PO(4) and 0.005 M pentan-sulfonic acid (pH 3.0) as eluent was followed by isocratic elution onto a 5 micro C18 analytical column using 0.01 M NaH(2)PO(4) and 0.005 M pentan-sulfonic acid (pH 3.0) as eluent. Analysis time was 23.0 +/- 0.1 min. The separation parameters were: capacacity factor = 6.21; plates/m = 15,002; peak tailing = 2.076. The method is linear between 5 ng/ml (detection limit) and 1000 ng/ml.
authors.affiliation: University Hospital Grosshadern, Department of Medicine III, Ludwig-Maximilians-University, München, Germany. wolfgang.kern@med3.med.uni-muenchen.de
authors.forename: W
authors.initials: W
authors.lastname: Kern
authors.forename: E
authors.initials: E
authors.lastname: Schleyer
authors.forename: M
authors.initials: M
authors.lastname: Bergmann
authors.forename: H
authors.initials: H
authors.lastname: Gschaidmeier
authors.forename: G
authors.initials: G
authors.lastname: Ehninger
authors.forename: W
authors.initials: W
authors.lastname: Hiddemann
authors.forename: J
authors.initials: J
authors.lastname: Braess
mesh_terms: D012437:Adenosylmethionine Decarboxylase / Q000037:antagonists & inhibitors*; D000578:Amidines / Q000032:analysis*; D000970:Antineoplastic Agents / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods; D004791:Enzyme Inhibitors / Q000032:analysis*; D006801:Humans; D007189:Indans / Q000032:analysis*; D015203:Reproducibility of Results
chemical_list: D000578:Amidines; D000970:Antineoplastic Agents; D004791:Enzyme Inhibitors; D007189:Indans; C082408:4-amidinoindan-1-one 2'-amidinohydrazone; D012437:Adenosylmethionine Decarboxylase