| Main Title |
Metal Speciation by Donnan Dialysis. |
| Author |
Cox, J. A. ;
Slonawska, K. ;
Gatchell, D. K. ;
Hiebert, A. G. ;
|
| CORP Author |
Southern Illinois Univ., Carbondale. ;Knox Coll., Galesburg, IL. Dept. of Chemistry.;Environmental Research Lab., Athens, GA. |
| Year Published |
1984 |
| Report Number |
EPA-R-809397; EPA/600/J-84/072; |
| Stock Number |
PB84-233428 |
| Additional Subjects |
Dialysis ;
Chemical analysis ;
Water quality ;
Metals ;
Ion exchanging ;
Chromatographical analysis ;
Sampling ;
Concentration(Composition) ;
Lakes ;
Cadmium ;
Copper ;
Lead(Metal) ;
Zinc ;
Separation ;
Reprints ;
Donnan dialysis ;
Water pollution detection ;
Voltammetry
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB84-233428 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6p |
| Abstract |
In Donnan dialysis aqueous samples are separated from receiver electrolytes by an ion exchange membrane. The present work demonstrates that the dialysis of metals into salt solutions occurs in proportion to the sum of the concentrations of the free metal and the metal held in the form of labile complexes; however, with strongly acidic or chelating receivers, the dialysis occurs in proportion to the total soluble metal. Hence, Donnan dialysis provides the basis for a rapid estimation of the total soluble (i.e., free plus labile complexed) metal and nonlabile-complexed metal. The method is demonstrated with Pb, Zn, Cu, and Cd complexes of glycine, humic acid, and nitrilotriacetic acid and is applied to a lake water sample. The results are compared to values obtained from an established approach that utilizes stripping voltammetry and separations with a chelating ion exchange resin. |
| Supplementary Notes |
Prepared in cooperation with Knox Coll., Galesburg, IL. Dept. of Chemistry. |
| Availability Notes |
Pub. in Analytical Chemistry, v56 n4 p650-653 1984. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Metal Speciation by Donnan Dialysis. |
| PUB Date Free Form |
c1984 |
| Category Codes |
7D; 68D; 99A |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
434223510 |
| Origin |
NTIS |
| Type |
CAT |
