Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Control of cadmium carbonate precipitation interferences during the dialysis of cadmium in high bicarbonate alkalinity aquatic-life bioassay waters /
Author Poldoski, John E.
CORP Author Environmental Research Lab.-Duluth, MN.
Publisher U.S. Environmental Protection Agency, Environmental Research Laboratory,
Year Published 1985
Report Number EPA/600/3-86/001
Stock Number PB86-145620
Subjects Cadmium. ; Dialysis.
Additional Subjects Cadmium carbonates ; Dialysis ; Cadmium ; Water pollution ; Natural resources ; Precipitation(Chemistry) ; Concentration(Composition) ; Humic acid ; Reaction kinetics ; Water analysis ; Comparison ; Aquatic biology ; Water pollution detection ; Ion selective electrodes
Library Call Number Additional Info Location Last
NTIS  PB86-145620 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 32 pages : illustrations ; 28 cm
The precipitation of cadmium carbonate during the dialysis of cadmium in a high bicarbonate alkalinity natural water, was linked to a significant source of error when determining dialyzate cadmium concentrations. The relative standard deviation was reduced by approximately four-fold when this precipitation was controlled by adding a particular preparation of humic acid to the dialysis bag filling solution. Linear regression correlation coefficients for sample-by-sample comparisons between resultant dialysis values and corresponding free cadmium values, obtained by cadmium ion selective electrode, were 0.90 or greater for concentrations in the range of 2 micrograms/L to 132 micrograms/L Cd(+2).
Caption title. "December 1985." "EPA/600/3-86/001." Includes bibliographical references. Microfiche.