title: [Development of an HPLC method for determination of chloroquine in plasma].
abstract: A simple, rapid and sensitive ion-pair high-performance liquid chromatographic method is described, which allows the quantification of chloroquine in human plasma. 7-Chloro-4-(4-ethylpropylamino-1-methyl-butylamino)quinoline was synthesized and used as internal standard. After extraction by toluene from 1 ml plasma, chloroquine was reextracted with 15% phosphoric acid from the organic phase. Chromatographic separation on a RP-18 column and UV-detection (343 nm) allows sensitive determination of chloroquine in plasma with a lower limit of quantification of 2.5 ng/ml. The method was successfully applied to human plasma samples from 16 subjects after oral administration of 250 mg chloroquine diphosphate.
authors.affiliation: Zentrallaboratorium Deutscher Apotheker, Eschborn/Ts.
authors.forename: D
authors.initials: D
authors.lastname: Zhong
authors.forename: J
authors.initials: J
authors.lastname: Meins
authors.forename: B
authors.initials: B
authors.lastname: Scheidel
authors.forename: H
authors.initials: H
authors.lastname: Blume
mesh_terms: D002738:Chloroquine / Q000097:blood* / Q000493:pharmacokinetics; D002851:Chromatography, High Pressure Liquid; D006801:Humans; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002738:Chloroquine
vernacular_title: Entwicklung einer HPLC-Methode zur Bestimmung von Chloroquin in plasma.