title: Modified normal pulse polarography of alkali-metal ions in acid solution.
abstract: Well-defined polarograms of five alkali-metal ions in 0.01M hydrochloric acid were obtained by means of modified normal pulse polarography. The method uses the procedure of anodic stripping chronoamperometry during the life-time of a drop from a dropping mercury electrode, namely preparation of electrode, accumulating step and anodic stripping step of a metal. The instantaneous polarographic currents were sampled only once per mercury drop after the fall of each pulse. The wave heights for alkali-metal ions by the present method are free from the interference caused by 0.01M hydrochloric acid. The present method is applicable to monitoring of alkali-metal ions in fluid acid streams.
authors.affiliation: Faculty of Education, Toyama University, 3190 Gofuku, Toyama-shi, Toyama 930, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hara
authors.forename: N
authors.initials: N
authors.lastname: Nomura