Record Display for the EPA National Library Catalog
RECORD NUMBER: 408 OF 2185Main 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 | |||||||||||
Holdings |
|
|||||||||||
Collation | 32 pages : illustrations ; 28 cm | |||||||||||
Abstract | 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). |
|||||||||||
Notes | Caption title. "December 1985." "EPA/600/3-86/001." Includes bibliographical references. Microfiche. |