Ion-exchange separation and spectrophotometric determination of vanadium in environmental samples.
A selective and sensitive method for the extraction and spectrophotometric determination of vanadium(V) in microgram quantities is described. The molar absorptivity of the yellow vanadium(V)-caffeic acid-Aliquat 336 extract is 1.3 x 10(4) 1.mole(-1).cm(-1) at 370nm. The method is compared with the atomic-absorption spectrometric method and applied to the trace determination of vanadium in steel, alloys, a rock and environmental samples.
Shah
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Department of Chemistry, University School of Sciences, Gujarat University, Ahmedabad-380 009, India.
Desai
M N
MN
Menon
S K
SK
Agrawal
Y K
YK