Extraction Spectrophotometric Determination of Rhodium (III) using 2, 4-dimethyl -3H- 1, 5 benzodiazepine as Fresh Analytical Reagent

Abstract

In the present experimental investigations, a novel reagent 2, 4-dimethyl -3H- 1, 5 benzodiazepine (DBA) has been developed for the extractive estimation of rhodium (III) from given sample and by use of extractive spectrophotometric analysis. In the Laboratory, the fresh reagent was prepared and its characterization has been done with the help of mass spectrophotometer and IR, NMR, elemental analysis. The developed analytical reagent (DBA) when reacts with rhodium (III) produces red complex, this complex can be extracted by using n-butanol as a selected solvent, maintained at constant pH 8.9. The Beers law is followed in the concentration of 1-10 μg L-1 of rhodium (III), the optimum values of maximum absorption, molar extinction coefficient and sandell’s sensitivity to the red complex, observed to be 510 nm, 4863 Lit mol-1cm-2 and 0.01102μg cm-2.The proposed analytical reagent is found to be best, simple and superiorfor extraction of rhodium (III) metals from syntheticsamples at optimized conditions.