In the present experimental studies, a new reagent 2, 4-dimethyl -3H- 1, 5 benzodiazepine (DBA) is devised for the extractive estimation of Fe (III) from given sample and by use of spectrophotometer as analysis tool. In the laboratory work, the fresh reagent was prepared and its characterization has been carried out with the help of mass spectrophotometer and IR, NMR, elemental analysis. The created analytical reagent (DBA) when reacts with iron produces red complex, this complex can be extracted by using n-butanol as a selected solvent, maintained at constant pH 7.8. The Beer's law is followed in the concentration of 1-10 μg Lit-1 of Fe (III) and the optimum values of maximum absorption, molar extinction coefficient, and sandal’s sensitivity to the red complex, are observed to be 430 nm, 4954 Lit mol-1cm-2 and 0.01203 μg cm-2 respectively. Accordingly to which it turned out that the reagent is the best for the assessment for estimation of Fe (III) from various sources of samples.
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