title: Standardization of EDTA by spectrophotometric titration, with metallic copper as standard.
abstract: The standardization of EDTA against electrolytically pure copper is described. The copper is dissolved and titrated spectrophotometrically with EDTA at pH 5.0 without an indicator. A relative standard deviation of 0.009% was achieved.
authors.affiliation: Department of Analytical Chemistry, Abo Akademi 20500 Abo 50, Finland.
authors.forename: S G
authors.initials: SG
authors.lastname: Huldén
authors.forename: L
authors.initials: L
authors.lastname: Harju