title: Determination of arsenic in high-purity copper by flameless atomic-absorption spectrophotometry.
abstract: Arsenic is separated from an ammoniacal solution containing 1 g or less of copper(II) by co-precipitation with ferric hydroxide. The precipitate is dissolved in nitric acid, the solution almost neutralized with ammonia, made up to volume and the As determined by flameless atomic-absorption spectrophotometry. Less than 0.5 ppm can be determined.
authors.affiliation: BICC Metals Ltd., Prescot, Merseyside, U.K.
authors.forename: J D
authors.initials: JD
authors.lastname: Mullen