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PdPt bimetallic alloy nanowires-based electrochemical sensor for sensitive detection of ascorbic acid

机译：PDPT双金属合金纳米线基电化学传感器，用于抗坏血酸的敏感检测

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摘要

One-dimensional (1D) bimetallic nanowire materials have attracted much more attention in electroanalysis because of their unique physical and chemical properties. In this work, we further extended the application field of the PdPt bimetallic alloy nanowires (PdPt BANWs) structure and successfully fabricated a novel PdPt BANWs-based electrochemical sensor for sensitive detection of ascorbic acid (AA). It was found that the PdPt BANWs on the electrode exhibited remarkable electrocatalytic activity toward AA oxidation and could be used for sensitive detection of AA in a wide linear range (0.01–0.97 mM) with a high sensitivity of 467.9 μA mM ~(?1) cm ~(?2) . The detection limit is as lower as 0.2 μM (S/N = 3). Moreover, the electrochemical sensor also exhibited good selectivity, reproducibility and stability, and had been successfully applied to detection of AA in serum samples and commercial vitamin C tablets with satisfactory results.
机译：由于其独特的物理和化学性质，一维（1D）双金属纳米线材料引起了电分析中的更多关注。在这项工作中，我们进一步扩展了PDPT双金属合金纳米线（PDPT BUSW）结构的应用领域，并成功地制造了一种用于抗坏血酸（AA）的敏感检测的新型PDPT BUSWS的电化学传感器。发现电极上的PDPT BUSWS对AA氧化表现出显着的电催化活性，可用于敏感性检测宽线性范围（0.01-0.97mm）的敏感性，具有467.9μAmm〜（？1）的高灵敏度cm〜（？2）。检测限度低至0.2μm（S / n = 3）。此外，电化学传感器还表现出良好的选择性，再现性和稳定性，并且已成功应用于检测血清样品和商业维生素C片中的AA，具有令人满意的结果。

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