title: Sensitive high-performance liquid chromatographic analysis of amlodipine in human plasma with amperometric detection and a single-step solid-phase sample preparation.
abstract: A narrow-bore HPLC assay with electrochemical detection for the determination of the calcium antagonist amlodipine in human plasma samples is presented. By using a single-step solid-phase extraction procedure on Bond Elut C2 columns, the sample preparation step has been considerably simplified and less time-consuming compared to earlier presented works. With a linear and reproducible calibration curve over the range 0.5-20 ng ml-1 plasma, the assay has successfully been used in the analysis of more than 500 plasma samples from a multicenter trial.
authors.affiliation: Department of Clinical Pharmacology, Faculty of Health Sciences, Linköping University, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Josefsson
authors.forename: A L
authors.initials: AL
authors.lastname: Zackrisson
authors.forename: B
authors.initials: B
authors.lastname: Norlander
mesh_terms: D017311:Amlodipine / Q000097:blood*; D002121:Calcium Channel Blockers / Q000097:blood*; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D006801:Humans; D006863:Hydrogen-Ion Concentration; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D002121:Calcium Channel Blockers; D017311:Amlodipine