Non-aqueous fluorimetric determination of scandium in silicate rocks.
A method for the fluorimetric determination of scandium with 1,2,7-trihydroxyanthraquinone in dimethylformamide medium is described. The calibration graphs obtained by the normal, synchronous, and synchronous first and second derivative techniques are linear between 12 and 225 ng/ml, and the detection limit is 2 ng/ml. The method is applied to the determination of Sc(III) in two simulated and two naturally occurring rocks.
Sanchez
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FG
Department of Analytical Chemistry, Faculty of Sciences, The University, 29071 Málaga, Spain.
Blanco
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CC
Bayona
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AH