W/O微乳液体系中SA和MS清除·O_2^-的研究  

Study on the Function of Salicylic Acid and Methyl Salicylate by Cleaning Superoxide Anion in Reverse Microemulsion

作　　者：黄娟[1] 马建华[1] 

机构地区：[1]集美大学生物工程学院,福建厦门361021

出　　处：《集美大学学报（自然科学版）》2010年第4期284-288,共5页Journal of Jimei University：Natural Science

基　　金：福建省自然科学基金项目(2009J01032);福建省教育厅基金项目(JA08136);厦门市集美区科技局科技项目(350211Z20092C01);集美大学中青年创新团队专向基金(2006A003)

摘　　要：以水溶液体系作为对照,利用分光光度法研究了W/O型微乳液体系中水杨酸(SA)和水杨酸甲酯(MS)清除超氧阴离子自由基(.O2-)的性能.结果发现,在水浴时间为20 min、pH值为8.20和邻苯三酚加入量适宜的情况下,W/O微乳液体系中SA、MS对.O2-的清除率分别可达72.92%、81.47%.微小的pH值变化会引起邻苯三酚自氧化速率的显著变化,电解质溶液对其也有明显的影响,但对SA、MS清除.O2-的能力影响不大.The function of cleaning superoxide anion （·O 2-） by SA and MS in reverse microemulsion was studied by spectrophotometry,and was compared with water solution. The results showed that： when reaction time was 20 min,pH value was 8. 20,and proper amount of pyrogallic was added,the clearance rates of SA and MS could reach 72. 92 % ,81. 47 % ,respectively. Tiny change of pH value could cause significant change of pyrogallic＇s autoxidation speed,and electrolyte solutions also had the same effect as pH,but had little effect on their clearance rates.

关 键 词：水杨酸(SA) 水杨酸甲酯(MS) W/O微乳液 邻苯三酚 超氧阴离子自由基(·O2-) 

分 类 号：O629.9[理学—有机化学]