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首页> 外文期刊>International Journal of Electrochemical Science >Potentiometric Study and Biological Activity of Some Metal Ion Complexes of Polyvinyl Alcohol (PVA).
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Potentiometric Study and Biological Activity of Some Metal Ion Complexes of Polyvinyl Alcohol (PVA).

机译：聚乙烯醇（PVA）的某些金属离子配合物的电位分析和生物活性。

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The acid-base equilibrium of polyvinyl alcohol (PVA) is investigated. The stability constant values ofthe binary complexes between PVA and metal ions Cu(II), Co(II), Ni(II) and Zn(II) formed in solutionwere investigated potentiometrically. The relationships between the properties of the studied centralmetal ions as ionic radius, electronegativity, atomic number, and ionization potential of the formedcomplexes were investigated and give information about the nature of chemical bonding in complexesII II and make possible the calculation of unknown stability constants. Cu and Ni complexes with PVAare isolated as solid complexes and characterized by chemical and physical methods, and their generalII II II II formula [ML.nH2O]2H2O, where M = Cu and Ni , L = PVA, and n = 2 and 4 for Cu and Nirespectively. The ligand and their metal chelates have been screened for their antimicrobial activitiesusing the disc diffusion method against the selected bacteria and fungi.
机译：研究了聚乙烯醇（PVA）的酸碱平衡。电位滴定法研究了PVA与金属离子Cu（II），Co（II），Ni（II）和Zn（II）之间的二元配合物的稳定常数。研究了所研究的中心金属离子的性质之间的关系，如形成的络合物的离子半径，电负性，原子序数和电离电势，并提供了有关络合物II II中化学键性质的信息，并使得计算未知的稳定常数成为可能。具有PVA的Cu和Ni配合物被分离为固体配合物，并通过化学和物理方法进行表征，其通式为II II II II [ML.nH2O] 2H2O，其中M = Cu和Ni，L = PVA，n = 2和4铜和镍分别。使用圆盘扩散法针对所选细菌和真菌筛选了配体及其金属螯合物的抗菌活性。

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