Department of Chemistry, University of Mumbai, Vidyanagri, Santacruz (E), Mumbai – 400 098 (INDIA)
Email: poonam_p_shevde@yahoo.co.in

The reagent 1, 2 Propanedione,1-phenyl-1-(2-hydroxy-5- bromobenzilidine azine) -2-oxime (PDPHBBAO) has been synthesized and it was subjected to FTIR, NMR, elemental analysis and Mass Spectroscopy for characterization. This reagent was then applied for extractive spectrophotometric determination of Cu(II). Copper metal forms dark yellow coloured complex, which can be extracted in chloroform at pH 9.6, having absorption maxima at 440 nm. Beer’s law is obeyed in the concentration range 1-10.00 μg. The Molar absorptivity and Sandell’s sensitivity was calculated on the basis of total Copper(II) taken and found to be 5.9909X 103 Lit mol-1 cm-1 and 10.6 X 10-3 μg / cm2 respectively.

The developed method is highly sensitive, selective, simple, rapid, accurate, and has been satisfactorily applied for the determination of copper in the synthetic mixtures, alloys, beverages, milk samples etc