Extraction-coulometric determination of copper as copper(II) 8-hydroxyquinolinate

Abstract

Conditions were selected for the coulometric determination of copper(II) by titrating copper(II) 8-hydroxyquinolinate extracted to chloroform with electrochemically generated bromine. The procedure was tested on model solutions and samples of surface waters. The detection limit is 5 × 10-7 M at a generation current and time of 1 × 10-3 A and 10 s, respectively. © 2005 Pleaides Publishing, Inc.