Microquantitative determination of ruthenium(III) spectrophotometrically using a schiff’s base derived from a triazine

A simple spectrophotometric method is described for the determination of ruthenium(III) using 4 - benzylideneamino -3- mercapto -6- methyl - 1, 2, 4 - triazine (4H) -5- one as the colour developing reagent . Accurate and reproducible results were obtained for 6-18 ppm of Ru(III) . The composition of the complex was studied by Job’s method of continous variation and mole ratio method . Results from both the methods reveal the reagent forms ML3 type complex with the metal ruthenium. The average value of molar absorptivity and Sandell’s sensititivity were computed and are obtained as 1.6545 x 103Lmol-1 cm-1 and 6.143 x 1071 gcm-2 respectively. Interference due to various foreign ions were also studied

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