Spectrophotometric determination of ruthenium(III) with N-decylpyridine-4- amine from succinate media

Department of Chemistry, Dr. B. A. M. University, Aurangabad-431 004, Maharashtra, India

E-mail : abrchem9@gmail.com Fax : 91-240-2403335

Manuscript received online 29 November 2013, revised 07 January 2014, accepted 05 February 2014

Spectrophotometric determination of ruthenium(III) with N-decylpyridine-4-amine in xylene from succinate medium was carried out. Ruthenium(III) was extracted quantitatively with 10 ml of 1 × 10^–4 M reagent concentration in xylene from 0.001 M sodium succinate concentration in 25 ml aqueous phase with 2% sodium chloride solution and estimated spectrophotometrically with pyridine-2-thiol at 620 nm. The effect of metal ions, acid, reagent concentrations and various foreign ions have been investigated. The method affords quantitative binary separation of ruthenium(III) and is applicable to the analysis of synthetic mixtures and alloys. The method is highly selective, simple and reproducible. The molar absorptivity and Sandell’s sensitivity of ruthenium(III)N-decylpyridine-4-amine complex is (1.2 × 10⁵ L mol^–1 cm–1) and (0.0078 µg cm^–2), respectively which indicates the applicability of the method.