Record Display for the EPA National Library Catalog

RECORD NUMBER: 13 OF 24

OLS Field Name OLS Field Data
Main Title Multiple Eluent and pH Effects on Ion Chromatography of Phosphate and Arsenate.
Author Hoover, Thomas B. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1982
Report Number EPA-600/J-81-046;
Stock Number PB82-207853
Additional Subjects Inorganic phosphates ; Arsenates ; Water analysis ; Anions ; Technology ; pH ; Chemical analysis ; Ion exchanging ; Water pollution ; Reprints ; Ion chromatography ; Water pollution detection ; Numerical solution
Holdings
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Status
NTIS  PB82-207853 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 13p
Abstract
The ion-exchange separation theory of Mayer and Tompkins is extended to the case of multiple eluent ions. The selectivity coefficients for carbonate and hydroxide, each relative to bicarbonate, were estimated from retention data for bromide and sulfate. These results were used to interpret the chromatographic retention data for phosphate and arsenate as a function of pH in carbonate-bicarbonate eluents. Despite large relative errors in the empirical constants, the qualitative behavior of the polybasic anions was accounted for by the predominant effect of the triply charged ions on the retention time, even at low relative concentrations.