BioChemie: Eine indische Zeitschrift
ISSN (PRINT): 0974-7427

Abstrakt

Amperometric determination of copper (II) in alloy samples and synthetic mixtures using gallacetophenone phenylhydrazone

D.Venkataramana Reddy, M.Jagadeesh, A.Varada Reddy


Gallacetophenone phenylhydrazone (GPPH) has been used as an analytical reagent for amperometric determination of copper. Copper(II) is quantitatively determined byGPPH at pH 4.0-6.0.After studying the polarographic behaviour of GPPH and copper(II) at dropping mercury electrode (DME), applied potential is fixed at -0.4Vvs saturated calomel electrode (SCE). The method is applied for the determination of copper in brass, chalcopyrites and syntheticmixtures. The stoichiometry of the complex is found to be 3:2 (metal : ligand). This is also confirmed fromthe micro analytical data of the solid complex, thermo gravimetric and differential thermal analysis curves of the complex.


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