Main Title |
Selection of the receiver electrolyte for the Donnan dialysis enrichment of cations / |
Author |
Cox, James A. ;
Gray, T. ;
Yoon, K. S. ;
Kim, Y. T. ;
Twardowski, Z.
|
Other Authors |
|
CORP Author |
Southern Illinois Univ. at Carbondale. Dept. of Chemistry and Biochemistry.;Environmental Research Lab., Athens, GA. |
Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, |
Year Published |
1984 |
Report Number |
EPA/600/J-84/418 |
Stock Number |
PB89-208854 |
Additional Subjects |
Dialysis ;
Quantitative analysis ;
Cations ;
Ion exchange membrane electrolytes ;
Magnesium sulfates ;
Aluminum sulfate ;
Cadmium ;
Copper ;
Electrodes ;
Lead ;
Tables(Data) ;
Reprints
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB89-208854 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
5 pages : illustrations ; 28 cm |
Abstract |
The Donnan dialysis of cations is typically performed with sulphonated ion-exchange membranes. Factors that govern the selection of the receiver electrolyte when such membranes are used are described. In terms of providing high enrichment factors that are similar for a variety of cations and constituting a medium that is compatible with various quantification methods, a mixture containing 0.2 M MgSO4 and 0.5 mM A12(SO4)3 at pH 1 is the recommended electrolyte. For use with cadmium and copper ion-selective electrodes, the pH is adjusted to 3.5-4 after the dialysis. For quantification with a lead ion-selective electrode, the receiver consists of the nitrate salts of Mg(III) and A1(III). |
Notes |
"Reprint article published in Analyst, 109(12):1603-1605, December 1984." "EPA/600/J-84/418." PB89-208854. Microfiche. |