الفهرس 
acknowledgmentOnly 14 pages are availabe for public view
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Abstract
The role of Dyridoxs in biologics systems, the structural requirenent to biological activity, the different tautomer fore’s of pyridoxal Shift bases well the equilibria oF these tautomer’s in solutions of different pits and solvent polarity. The vim of Investigation ang the statement of the promos are also included. The comprises the As The first with the active to properties of pyrtiox eloreyihy geazones. from the study of the electrante absorstion spectre of these hydra poustoie to Laentity ott ferent species In solution, depensing on the variation of tne vents used and the of the mecta. The secone part devotes to the study of the acid nydrolysts of pyridaxntoraylnysrazence by ictropnotonetric variation of the sximum absorvence Fixed wavelength and function oF times The kinetic date of this hyarolyeta were compared thore obtained for sol Leyla ldehysear oyinyr azoncs under.