腐殖质NAFA溶液中的扑热息痛光解研究

以中压汞灯为光源模拟阳光,研究了扑热息痛（ACT）在腐殖质NAFA中的光解行为,探讨了不同浓度的腐殖质、ACT、硝酸钠、碳酸氢钠、二价铁离子和pH值对ACT光解的影响,采用GC/MS技术鉴定了ACT的光解产物,并探讨其在腐殖质体系中可能的光解途径。研究结果表明,增加水体中的腐殖质、硝酸钠、二价铁离子浓度和pH值会促进ACT的光解,而增加水体中的ACT和碳酸氢钠浓度则会抑制ACT的光解。

Study on Photodegradation of Paracetamol(ACT) in the Solution of Humic Substances(NAFA)

The photodegradation of paracetamol(ACT) in the solution of humic substances(NAFA) was studied with the mercury lamp at medium pressure as the simulated solar source.The effects of different concentrations of humic acid,nitrate,carbonate,Fe(Ⅱ) and pH value on the degradation of ACT was also researched.The degradation products were identified with the GC/MS and the possible degradation-process in humic materials system was also supposed.The results revealed that,the degradation of ACT was promoted with the higher concentration of humic acid,nitrate,Fe(Ⅱ) and pH value,while decreased with increasing concentration of carbonate.