Simultaneous Determination of Iron and Copper in Aqueous Solution Using Spectrophotometry

Iron and copper mixtures were quantitatively determined in aqueous solutions for the first time using the analytical method in this approach with the aid of T60U Spectrophotometer. The method is so simple, fast, economic, and can be carried out easily on a bench. The absorbencies for iron, copper and iron-copper mixtures in aqueous solution were measured using T60U adopted with UVWin6 software UV -VIS Spectrometer (pg instruments United Kingdom) by filling two 5 ml quartz cells of dimensions 1*1*5 cm, the first is filled with the blank solution which is a solution containing all the constituents of the sample except iron and copper and the other quartz cell is filled with the stock solution iron and/or copper under investigation. Absorbency of iron was determined by setting T60U spectrometer wavelength at 504 nm, meanwhile for copper absorbency measurements the apparatus is set at 304 nm. Iron, copper, and iron-copper mixture calibration curves were of very high accuracy with the least linear regression value of ≤ 1, i, e the measured data were of relative standard deviation value (RSD) of ≤ 1.5%.