title: Serum calcium and potassium determination by the split membrane ion-selective electrode technique.
abstract: Results are presented for the determination by differential potentiometry of calcium and potassium in human and sheep sera, by use of a flow-through cell. The split-membrane ion-selective electrode technique has been used in conjunction with polymer membrane electrodes of the coated-wire type and the type containing an aqueous inner reference solution. The electroactive reagent is di(n-octylphenyl)phosphoric acid for calcium and valinomycin for potassium.
authors.affiliation: Department of Inorganic and Analytical Chemistry, La Trobe University, Bundoora, Victoria 3083, Australia.
authors.forename: R W
authors.initials: RW
authors.lastname: Cattrall
authors.forename: K T
authors.initials: KT
authors.lastname: Fong