Extraction and spectrophotometric determination of cobalt(II) with isonitroso-5-methyl-2-hexanone |
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Authors: | Jadhav S B Tandel S P Malve S P |
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Affiliation: | Department of Inorganic Chemistry, The Institute of Science, 15 Madam Cama Road, Mumbai 400 032, India |
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Abstract: | A simple and selective method is proposed for the extraction of cobalt(II) for its spectrophotometric determination using (HIMH) as an extractant. Cobalt(II) forms a yellow coloured complex with HIMH which can be extracted into chloroform. The calibration curve is rectilinear in the concentration range 0.1–5.0 μg ml−1 of cobalt(II). The extracted species shows an absorption maximum at 400 nm with molar absorptivity of 1.135×104 l mol−1 cm−1. The method has been applied for the determination of cobalt in synthetic mixtures, pharmaceutical, biological and high speed steel samples. |
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Keywords: | Cobalt Extraction HIMH Spectrophotometry Trace |
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