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首页> 外文期刊>Electroanalysis >The electrochemical behavior of UO22+ incorporated in thin sol-gel film on the glassy carbon electrode and the determination of Cupferron
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The electrochemical behavior of UO22+ incorporated in thin sol-gel film on the glassy carbon electrode and the determination of Cupferron

机译：玻碳电极上溶胶-凝胶薄膜中掺入的UO22 +的电化学行为及铜铁的测定

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摘要

A novel kind of electrode for determination of ammonium nitrophenylhydroxyamine (Cupferron) was developed via an easy and effective immobilization method using an acid-catalyzed sol-gel technique. The electrode comprised uranyl nitrate (UO2(NO3)(2)) immobilized by the thin silica sol-gel film on a glassy carbon electrode (GCE). The UO2(NO3)(2) retained its good preconcentration characteristic when being doped by the sol-gel film. Cupferron was determined by the direct reduction at the silica sol-gel immobilized UO2(NO3)(2) electrode. Moreover its electrochemical behavior was also investigated. The determination conditions for Cupferron were optimized. The UO22+ film electrode still retained high stability after three months. The experimental results show that this method for Cupferron determination possessed good reproducibility and applicability. [References: 20]
机译：通过一种简单有效的固定化方法，采用酸催化的溶胶-凝胶技术开发了一种新型的用于测定硝基苯基羟胺铵（Cupferron）的电极。电极包括硝酸铀酰（UO2（NO3）（2）），该硝酸铀酰通过薄的硅溶胶凝胶膜固定在玻璃碳电极（GCE）上。当被溶胶-凝胶膜掺杂时，UO2（NO3）（2）保留了其良好的预浓缩特性。铜铁是通过在固定化硅胶溶胶-凝胶的UO2（NO3）（2）电极上直接还原来确定的。此外，还研究了其电化学行为。优化了Cupferron的测定条件。三个月后，UO22 +薄膜电极仍保持高稳定性。实验结果表明，该方法具有良好的重现性和适用性。 [参考：20]

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