Determination of the Complexing Capacity of Water Systems by Gel Chromatographic and Electrochemical Techniques

摘要

Part I: An electrochemical flow cell has been developed using reticulated vitreous carbon (RVC) coated with a thin film of mercury. The cell was tested as a detector for metal complexes eluated from a modified gel permeation chromatographic column. Part II: A modified gel permeation chromatographic technique using eluent which is buffered with copper (II) is used to separate a series of copper (II) complexes. An electrochemical flow cell is used to identify and quantitate the copper complexes; a reverse pulse amperometry mode is used to minimize oxygen interferences.