title: Determination of trace levels of calcium in steels by carbon-furnace atomic-absorption and atomic-emission spectrometry.
abstract: Methods are described for the determination of trace levels of calcium in steels by atomic-absorption and atomic-emission spectrometry with a carbon furnace for atomization and excitation. In both cases, a commercial electrothermal atomic-absorption instrument was used. Samples were analysed after dissolution in a mixture of nitric, hydrochloric, and hydrofluoric acids.
authors.affiliation: Chemistry Department, Simon Bolivar University, Apartado 80659, Caracas 1080, Venezuela.
authors.forename: J
authors.initials: J
authors.lastname: Alvarado
authors.forename: F
authors.initials: F
authors.lastname: Campos
authors.forename: J M
authors.initials: JM
authors.lastname: Ottaway