title: Polarographic determination of ampicillin in capsules and tablets.
abstract: A new polarographic method is used for quantitative analysis of ampicillin dosage forms. The electroactive product is formed by acidic hydrolysis of ampicillin. It gives a well-developed reduction wave with half-wave potential of -0.91 V vs. SCE. The proposed method has good precision. A major advantage is the selectivity, which makes the determination of ampicillin possible without prior separation of the excipient.
authors.affiliation: Department of Chemical Pharmacology and Physical Chemistry, Faculty of Chemical and Pharmacological Sciences, University of Chile, Santiago, Chile.
authors.forename: J A
authors.initials: JA
authors.lastname: Squella
authors.forename: L J
authors.initials: LJ
authors.lastname: Nunez-Vergara