P. Bruno, M. Caselli, C. Gatti
1980
Citations
0
Influential Citations
5
Citations
Journal
Analytical Letters
Abstract
Abstract Hexamethylphosphoramide (HMPA) gives, in aqueous solutions in the presence of SCN− ions, complexes with many metal ions, which absorb in the visible region of spectrum. The spectra have been studied in function of ligand concentration and pH for Co, Ni and Fe complexes. For the Co complex an equation was found that describes the behaviour of the absorption vs. SCN− and HMPA concentration. Absorption follows Lambert-Beer law and can be used for analytical determinations. Analysis of solutions containing Ni and Co in various ratios of concentration has been performed and results are discussed. Co, Ni and Fe content of an alloy has been measured by this way.