title: Successive chelatometric titration of calcium and magnesium.
abstract: A simple procedure for the successive chelatometric titration of calcium and magnesium in natural waters, with 3',3''-bis(2-hydroxy-3-carboxy-naphthaleneazo)phenolphthalein as indicator, is described.
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University, Okayama, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Tôei
authors.forename: T
authors.initials: T
authors.lastname: Kobatake