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Electrochemical Detection of 4-Nitrophenol on a Nanoporous Gold Electrode Prepared by One-Step Anode Potential Step Method

机译:一步阳极电位步骤方法制备的纳米孔金电极上4-硝基苯酚的电化学检测

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The wastewater containing nitrophenol compounds is discharged into the water and soil environment, causing severe environmental pollution problems. In this paper, a one-step anodic potential step method involving Au(I) disproportionation was used to prepare nanoporous gold (D-NPG) electrodes for the electrochemical detection of 4-nitrophenol (4-NP) by differential pulse voltammetry (DPV). The D-NPG electrode has a high current response to the oxidation peak of 4-hydroxylaminophenol, a product of 4-NP electroreduction. This peak is used in the 4-NP detection. Under the optimized conditions, the resulting detection range is wide (0.01~20 μM) and the detection limit is low (3.5 nM), and its anti-interference ability is good. It can be used for the electrochemical detection of 4-NP in real water samples.
机译:含有硝基苯酚化合物的废水排放到水和土壤环境中,造成严重的环境污染问题。 本文中,使用涉及Au(i)歧化的一步阳极电位步骤方法来制备用于通过差分脉冲伏安法(DPV)的4-硝基苯酚(4-NP)的电化学检测的纳米多孔金(D-NPG)电极 。 D-NPG电极对4-羟氨基苯酚的氧化峰具有高电流响应,该戊烯烯酚的氧化峰是4-NP电氧化物的产物。 该峰值用于4-NP检测。 在优化条件下,所得的检测范围宽(0.01〜20μm),检测极限低(3.5nm),其抗干扰能力良好。 它可用于实际水样中4-NP的电化学检测。

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