Accession Number : ADA053287
Title : Electrometric Determination of Metals in Waste Waters Containing Surfactants: Suitability of Differential Pulse Anodic Stripping Voltammetry at an Hanging Mercury Drop Electrode.
Descriptive Note : Final technical rept. 30 Apr 76-30 Sep 77,
Corporate Author : GEORGE WASHINGTON UNIV WASHINGTON D C DEPT OF CHEMISTRY
Personal Author(s) : Getek,Timothy A ; Schmidt,William E
Report Date : Mar 1978
Pagination or Media Count : 95
Abstract : The investigation was pursued as one aspect of a water extractable constituents research program. Knowledge was needed concerning the effect of organic constituents on the electrometric determination of metals in such waste waters as bilge discharge. Hence the electrodics of organics, including surfactants and their effect on the reactions of metal ions--for example, copper, lead, cadmium, and zinc--was studied. The relatively recent technique of differential pulse anodic stripping voltammetry was explored as the prime electrometric method. The application of anodic stripping to trace determinations in a variety of samples has been documented in the literature. This distinctive technique suffers from some of the common interferences and complications inherent in all work at low concentrations. Interferences unique to this method--intermetallic compound formation and surface active substances -- were examined in the differential pulse anodic stripping voltammetric mode with an hanging mercury drop electrode. A review was also undertaken to compile relevant literature on stripping analysis.
Descriptors : *METALS , *WASTE WATER , *SURFACE ACTIVE SUBSTANCES , *TRACE ELEMENTS , COPPER , ELECTRODES , ORGANIC COMPOUNDS , CONTAMINANTS , ZINC , CADMIUM , EXTRACTION , VOLTAMMETRY , ANODES , INTERMETALLIC COMPOUNDS , LEAD(METAL) , BILGES , ELECTROMETERS
Subject Categories : Test Facilities, Equipment and Methods
Water Pollution and Control
Distribution Statement : APPROVED FOR PUBLIC RELEASE