Analytical application of m-methylphcnylazo-bis-acetoxime in the spectrophotometric determination of cobalt(ll)

Department of Chemistry, M. L. Sukhadia University, Udaipur-3 I 3 00 I, India M.D.S. University, Ajmer-305 001, India Manuscript received 15 ;March 2002, revised 26 September 2002, accepted 12 December 2002 m-Methylphenylazo-bis-acetoxime has been used for spectrophotometric determination of cobalt(II). The complex absorbs at 394 nm and the Beer's law validity has been checked. Stability constants have been calculated. The molar absorptivity and Sandell's sensitivity values are 2258 dmi mol-1 cm-1 and 26.10 µg cm-2, respectively.

Keywords

cobalt complex, stock solution of cobalt, spectrophotometric determination

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