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RECORD NUMBER: 26 OF 26

OLS Field Name OLS Field Data
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
Author Title of a Work
Gray, Thomas.
Yoon, Kyung S.
Kim, Yeon-Taik.
Twardowski, Zbigniew.
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
OCLC Number 44783584
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
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Status
NTIS  PB89-208854 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
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.