الفهرس 
Introduction
Molar ratio methodOnly 14 pages are availabe for public view
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Abstract
Metal - hydrazone complexes and some physicochemical measurements applied in the present investigation were reviewed. Preparation of materials, solutions and working procedures were described. Absorption spectra of transition elements, ligands and metal - ligand mixtures in aquous solutions were measured over the visible and ultraviolet ranges. Complex formation was indicated by the comparison of the spectra.