title: Synergistic influence of Zn(II) in the extraction-atomic-absorption determination of trace cadmium in waters.
abstract: A very simple and rapid procedure is described in which the addition of a large amount of Zn(II) to a water sample before extraction by 2-mercaptobenzothiazole into n-butyl acetate brings about almost total extraction of Cd and allows determination of concentrations down to at least 0.02 ng/ml. High precision is achieved, and the interference of cyanide is also overcome.
authors.affiliation: Department of Analytical Chemistry University of New South Wales Sydney, N.S.W., Australia.
authors.forename: K J
authors.initials: KJ
authors.lastname: Doolan
authors.forename: L E
authors.initials: LE
authors.lastname: Smythe