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Estimation of Cadmium Ion on Thin Layer Chromatograms by Fluorescence Scanning

N. Turina ; Economic Faculty, University of Zagreb, 41000 Zagreb, Trg J. F. Kennedy 6, Yugoslavia
S. Turina ; Institute of Materiais Research, University of Zagreb, 41000 Zagreb, Salaja 2, Yugoslavia

Puni tekst: engleski pdf 1.526 Kb

str. 407-410

preuzimanja: 114



A procedure for the quantitative estimation of Cd ions in
aq ueous solution, in the presence of other heavy-metal ions is
proposed. Separation of Cd is made by TLC, with a solvent system
containing acetic acid. The latter is necessary in order to obtain
Cd spots suitable for fluorescence scanning after the formation
of a fluorescent complex. Al ions cannot be separated from Cd
ions by this procedure. Therefore, the fluorescent cadmium complex
is generated with Titan Yellow, a reagent that does not react with
aluminum ions. The practical value of the procedure is, however,
limited by the narrowness of the useful Cd-concentration range.

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