Spectrophotometric Method for the Determination of Cobalt

Department of Chemistry, University of Kuwait, Kuwait Manuscript received 25 January 1977, revised 11 October 1977, accepted 26 July 1980 Spectrophotometric method for the determination of cobalt is given. The basis of the method is to convert cobalt into the stable and less sensitive to light trismalonato­cobaltate(III) anion. Iron, nickel and chromium may be present in a reasonable amount. The accuracy of the method is better than 2% of the quantity estimated