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Electrochemical Detection and Degradation of Acetaminophen in Aqueous Solutions

机译:水溶液中对乙酰氨基酚的电化学检测与降解

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This study presents simple electrochemical approaches used to detect and destroy acetaminophen (AP)in aqueous solutions. The electro-oxidation behavior and efficiency of AP were monitored on apoly(L-serine) (PLS) film-modified glassy carbon electrode (GCE) using cyclic, linear sweepvoltammetric, and differential pulse voltammetric techniques. The PLS film was found to exhibitcatalytic activity towards the electrochemical oxidation of AP. Under optimized pH condition, AP-6 -5 -1 showed a linear response between 1.010 and 1.010 mol L (correlation coefficient > 0.995). The-7 -1 detection limit (DL) of AP was determined as 1.010 mol L (S/N = 3) and the average recoveriesand relative standard deviation (RSD) were 97.5 and 2.8% (n = 5), respectively. In addition, increasingcurrent density and pH favored the degradation of AP. The performance of PbO2/Ti anode was betterthan those of Pt/Ti and DSA electrodes for AP degradation.
机译:这项研究提出了用于检测和破坏水溶液中对乙酰氨基酚(AP)的简单电化学方法。使用循环,线性扫描伏安法和差分脉冲伏安法,在聚(L-丝氨酸)(PLS)膜修饰的玻碳电极(GCE)上监测AP的电氧化行为和效率。发现PLS膜表现出对AP的电化学氧化的催化活性。在优化的pH条件下,AP-6 -5 -1在1.010和1.010 mol L之间显示线性响应(相关系数> 0.995)。 AP的-7 -1检出限(DL)为1.010 mol L(S / N = 3),平均回收率和相对标准偏差(RSD)分别为97.5和2.8%(n = 5)。另外,电流密度和pH值的增加有利于AP的降解。 PbO2 / Ti阳极在AP降解方面的性能优于Pt / Ti和DSA电极。

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