Published:Journal of Chromatographic Science,
ISSN 0021-9665Volume
39, Number 4, January 2001, pp. 463-467
Low-Voltage Paper Electrophoretic Study of Ion-Pair Formation
and Electrochromatography of Inorganic Anions on Papers Impregnated with Titanium
(IV) Tungstate
S.D. Sharma*, Mridul Bhalwar,
and Rachna Gupta Analytical Research Laboratory, Department of Chemistry,
Hindu College, B-3, Jigar Colony, Moradabad-244001, India
The ion-pair formation and electrochromatographic behavior of
22 anions are studied on plain and titanium (IV) tungstate impregnated papers
using 0.1N and 1N solutions of NaNO3, Mg(NO3)2, Al(NO3)3, Cr(NO3)3, and Co(NO3)2
as background electrolytes. The effect of ion-pair formation on the migration
of anions is studied. In general, the mechanism of migration is explained in
terms of adsorption, precipitation, and complex formation. A number of binary
and ternary separations are achieved. In Mg(NO3)2 media, the migration is correlated
with the solubility of their magnesium salts for SO32–, C2O42–, SeO32–,
AsO43–, and Fe(CN)64–.
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