Electrochemical pre-concentration technique for use with inductively coupled plasma atomic-emission spectrometry. Part I

Abstract

The use of a wall-jet electrochemical cell for pre-concentration of trace metals from flowing streams prior to their determination by inductively coupled plasma atomic-emission spectrometry (ICP-AES) is described. The metal of interest is deposited on a glassy carbon electrode held at the reduction potential of the metal. After collection in this way the metal is stripped back into solution by applying an anodic-stripping potential. The resulting metal solution is pumped to the ICP for determination.