Abstract Paracetamol and its toxic transformation products have been found in surface water, wastewater, and drinking water. Effective methods to degrade these products must be found to reduce their detrimental effects on microorganisms in aquatic systems and minimize the concern on human health. Thus, this study looked into the electrochemical oxidation of paracetamol and its oxidation products on surface water, and results were compared with those of paracetamol synthetic solution oxidation. Degradation of paracetamol was conducted using a stainless steel electrode cell, a pH of 3, and direct current densities of 5.7 mA/cm2 (6 V) and 7.6 mA/cm2 (12 V). For both current densities applied, the pharmaceutical and its oxidation products observed by high-performance liquid chromatography with diode-array detection (HPLC-DAD) at 254 nm were totally degraded. Faster degradation of paracetamol was observed at a higher current density. Indeed, 95% of paracetamol was oxidized in only 15 min at the 7.6 mA/cm2 curr...

中文翻译：

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电化学氧化降解地表水中的扑热息痛及其氧化产物

摘要 扑热息痛及其有毒转化产物已在地表水、废水和饮用水中发现。必须找到降解这些产品的有效方法，以减少它们对水生系统中微生物的不利影响，并尽量减少对人类健康的关注。因此，本研究研究了扑热息痛及其在地表水中的氧化产物的电化学氧化，并将结果与​​扑热息痛合成溶液氧化的结果进行了比较。对乙酰氨基酚的降解使用不锈钢电极池进行，pH 值为 3，直流电流密度为 5.7 mA/cm2 (6 V) 和 7.6 mA/cm2 (12 V)。对于应用的两种电流密度，在 254 nm 波长处采用二极管阵列检测器 (HPLC-DAD) 的高效液相色谱法观察到的药物及其氧化产物完全降解。在较高的电流密度下观察到对乙酰氨基酚的降解更快。实际上，在 7.6 mA/cm2 电流下，95% 的扑热息痛仅在 15 分钟内就被氧化...