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Abstract

DIRECT AND DERIVATIVE SPECTROPHOTOMETRIC DETERMINATION OF CU (II) USING ESOMEPRAZOLE

B. Ranganath, D. Rajesh, L. K. Ravindranath and P. Venkata Ramana

ABSTRACT

Esomeprazole is a new chromogenic reagent used for the determination of copper (II) by direct and derivative spectrophotometric method. Esomeprazole forms a yellow coloured complex with copper (II) at pH 3. The method obeys Beer’s law over 0.5 to 10 ppm and sandell sensitivity is 0.022 μg/cm2. The method is useful for determination of copper in biological, alloys, synthetic mixture and water samples.

Keywords: Esomeprazole, Copper (II), Spectrophtometry, Synthetic mixture, Alloys.


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