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W/O微乳液体系中SA和MS清除·O_2~-的研究
引用本文:黄娟,马建华.W/O微乳液体系中SA和MS清除·O_2~-的研究[J].厦门水产学院学报,2010(4):284-288.
作者姓名:黄娟  马建华
作者单位:集美大学生物工程学院,福建厦门361021
基金项目: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(350211220092C01);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20min、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.

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-)

Study on the Function of Salicylic Acid and Methyl Salicylate by Cleaning Superoxide Anion in Reverse Microemulsion
Authors:HUANG Juan  MA Jian-hua
Institution:(School of Biotechnology Engineering,Jimei University,Xiamen 361021,China)
Abstract: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.
Keywords:salicylic acid ( SA) methyl salicylate ( MS) W/O type microemulsion pyrogallic superoxide anion radical (·O 2-)
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