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用紫外可见光谱法研究了在碱性溶液中[Ni(PnAO)-H]~++H_2O_2→[Ni(PnAO)-6H]~0的反应动力学并提出了包含自由基·OH的复杂反应机理。采用经典确定反应机理的方法及Gauss-Newton-Marquardt非线性拟合和Runge-Kutta解一次微分方程组程序处理数据并获得了良好的结果。改变碱浓度及双氧水浓度所得结果支持所拟机理。
The reaction kinetics of [Ni (PnAO) -H] ~ ++ H_2O_2 → [Ni (PnAO) -6H] ~ 0 in alkaline solution was studied by UV-VIS spectroscopy and the complex reaction containing free radicals · OH mechanism. The classical method of determining the reaction mechanism and the Gauss-Newton-Marquardt nonlinear fitting and Runge-Kutta solution of the first-order differential equations are used to process the data and obtain good results. Alteration of the concentration of alkali and hydrogen peroxide results support the proposed mechanism.