Detection and spectrophotometric determination of cobalt with dimedone dioxime.
Dimedone dioxime forms coloured complexes only with cobalt, nickel and copper ions in alkaline solution. Acidification and solvent extraction enables cobalt (1-50 mug) to be determined spectrophotometrically without interference. A specific spot test for cobalt is based on the same reaction.
Belcher
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Chemistry Department, Birmingham University, P.O. Box 363, Birmingham B15 2TT, U.K.
Ghonaim
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Townshend
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