Reverse-phase chromatographic separation of Co(II) and Co(III) as the Co(DEDTC)3 and Co(acac)3 complexes |
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| Authors: | H. de Beer P. P. Coetzee |
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| Affiliation: | Department of Chemistry and Biochemistry, Rand Afrikaans University, P.O. Box 524, Auckland Park 2006, Republic of South Africa, ZA
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| Abstract: | A reverse-phase chromatographic method is described for the simultaneous determination of Co(II) and Co(III) using gradient elution of the Co(DEDTC)3 and Co(acac)3 complexes, respectively, with phosphate buffered acetonitrile water mixtures. The separated Co species are detected spectrophotometrically at 322?nm. The analytical range of the method is 0.1 to 1.25?μg/ml for Co(II) and 0.1 to 1.5?μg/ml for Co(III). |
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