SPECTROPHOTOMETRIC DETERMINATION OF RHODIUM (III) WITH {2-[di-(2-PYRIDYL) METHYLIDENEHYDRAZIN0] QUINOLINE.

R B SINGH, Y. P S TOMAR, P JAIN, B S GARG

Abstract


A simple,  rapid and selective procedure for spectrophotometric determination of Rh(IlI) has been  developed. Rh(III) forms a pink coloured complex with {2-[di(2-pyridyl)methylidenehydrazino)-  quinolinel in the pH range 1-0-3.0  (Lamda-max 530 nm). Beer's law is obeyed up to 10-30 ppm. The molar  absorptivity and Sandell sensitivity are 1.42 x 10^4 1mol^-1  cm^-1  and 0.0072 mug/cm^2 , respectively.


Keywords


Spectrophotometry, rhodium(111), {2-[di-(2-pyridyl)methylidenehydrazino] quinoline}.

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