Record Display for the EPA National Library Catalog

RECORD NUMBER: 121 OF 1213

OLS Field Name OLS Field Data
Main Title Analysis of Solutions for Surface Active Agents.
Author Baue, Henry H. ;
CORP Author Kentucky Water Resources Inst., Lexington.
Year Published 1970
Report Number RR-39; DI-14-01-0001-1636 ;DI-14-31-0001-3017; OWRR-A-014-KY; 03305,; A-014-KY(1)
Stock Number PB-196 660
Additional Subjects ( Water pollution ; Surfactants) ; ( Polarographic analysis ; Water pollution) ; Solutions ; Electrochemistry ; Alcohols ; Adsorption ; Electrolytes ; Water pollution detection ; Tensammetric analysis
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-196 660 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 21p
Abstract
The objective was to obtain a better understanding of the behavior of surfactants in aqueous solutions at electrodes. With this understanding it should be possible to design electrochemical methods for the detection, identification, and quantitative determination of such substances. This study was concerned primarily with the influence of extraneous salts on the behavior of surface active agents when these are examined by the electrochemical technique known as tensammetry. The tensammetric method consists essentially of the measurement of the electrical impedance of an electrochemical cell. This impedance is characteristically increased in the presence of surfactants at those potentials where the surfactants are absorbed on the electrode. Since tensammetric measurements can be made only in solutions of sufficiently high conductivity, the nature and effects of added salts on the result obtained is a considerable importance. It was found that the salt effect is relatively unimportant when the salt concentration is not greater than approximately 0.1 m. The applicability of the technique to the analysis of surface active agents under actual field conditions was not attempted. (Author)