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首页> 外文期刊>Electroanalysis >Detection of Cadmium and Copper Cations Using Amorphous Nitrogenated Carbon Thin Film Electrodes
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Detection of Cadmium and Copper Cations Using Amorphous Nitrogenated Carbon Thin Film Electrodes

机译：非晶态氮碳薄膜电极对镉和铜阳离子的检测

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Nitrogenous amorphous carbon (a-CN _x) thin films were deposited by radio-frequency cathodic magnetron sputtering (13.56MHz) on polished and etched titanium disks. While these films are cheaper to prepare than commonly reported carbon-based electrodes, the usable electrochemical window in aqueous solution is within the same range and spans from -1.5 to +1.8V vs. SCE. The electrochemical reactivity was tested using the ferri-ferrocyanide redox couple as a function of the thin films preparation parameters. The obtained electrochemical properties allow the use of these a-CN _x thin films for stripping electroanalysis of cations in water, minimizing potential solvent reactivity. Cadmium and copper were used to test these detection abilities. Better analytical properties (notably sensitivity and linearity) were obtained as compared to a commercial boron doped diamond electrode. Preliminary competition/interaction experiments for these two cations were performed.
机译：通过射频阴极磁控溅射（13.56MHz）在抛光和蚀刻的钛盘上沉积氮非晶碳（a-CN _x）薄膜。尽管这些膜的制备比通常报道的碳基电极便宜，但在水溶液中可用的电化学窗口在相同范围内，相对于SCE介于-1.5至+ 1.8V之间。使用亚铁-亚铁氰化物氧化还原对作为薄膜制备参数的函数来测试电化学反应性。所获得的电化学性质允许将这些a-CN_x薄膜用于剥离水中阳离子的电分析，从而最大程度地减少潜在的溶剂反应性。镉和铜用于测试这些检测能力。与商业掺硼金刚石电极相比，可获得更好的分析性能（特别是灵敏度和线性）。对这两个阳离子进行了初步竞争/相互作用实验。

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