6533b854fe1ef96bd12afbfe

RESEARCH PRODUCT

Electroosmotic effects in the determination of ion mobilities of carrier-free radionuclides in free aqueous electrolyte solutions

O. KlingE. MauerhoferFrank Rösch

subject

Carrier freeChemical treatmentChemistryTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITYAnalytical chemistryElectrolyteAqueous electrolytePhysical and Theoretical ChemistryElectromigrationIon

description

A device for on-line electromigration studies of radio-elements in free electrolytes has been tested by measuring the absolute individual ion mobilities of no-carrier-added single charged anions [99mTc]TcO4 - and [18F]F- and differently charged cations [137Cs]Cs+, [57Co]Co2+ and [241Am]Am3+ in inert aqueous electrolytes at 298.1 K. The observed ion mobilities were found to be influenced by electroosmosis in the migration tube. A relation to correct this effect is proposed. In addition, it was shown that the effect of electroosmosis may be suppressed by chemical treatment of the surface of the migration tube.

yearjournalcountryeditionlanguage
2001-08-01Radiochimica Acta
https://doi.org/10.1524/ract.2001.89.8.537