详细信息
W/O型微乳液中超氧化物阴离子的产生──微环境中SOD酶活性测定方法研究
Generation of superoxide anion in reverse microemulsion ─methodical study on measurement of SOD activity
文献类型:期刊文献
中文题名:W/O型微乳液中超氧化物阴离子的产生──微环境中SOD酶活性测定方法研究
英文题名:Generation of superoxide anion in reverse microemulsion ─methodical study on measurement of SOD activity
作者:翟利民[1];李干佐[1];隋华[2];袁勤生[3]
机构:[1]山东大学胶体与界面化学教育部重点实验室,山东济南250100;[2]山东大学环境工程系,山东济南250100;[3]华东理工大学生物工程系,上海200237
年份:2000
卷号:16
期号:2
起止页码:65
中文期刊名:分子科学学报
外文期刊名:Journal of Molecular Science
收录:CSTPCD;;CSCD:【CSCD_E2011_2012】;
基金:国家自然科学基金!29903006
语种:中文
中文关键词:邻苯三酚;底物O2^-;O\W型微乳液;SOD酶;活性测定
外文关键词:pyrogallic; substrate O2-; dielectric constant; W/O type microemulsion; water pool
摘要:分别在水溶液中和 W /O型 CTAB/正戊醇/异辛烷 /水微乳液体系中研究了测定SOD酶活性的邻苯三酚法,发现在反向微乳液中,“小水池”的低介电常数和pH抑制了底物超氧化物阴离子O2-·的产生.只有提高外加缓冲液的pH或“小水池”的水化度,才能得到所需浓度的O2-·,从而初步解决了在微乳液中SOD作用废物的产生问题,为在微乳液中准确测定SOD酶活性创造了条件.
The pyrogallic method for determining the activity of SOD is studied in the aqueous solution and the CTAB/n -pentanol/n -octane/water microemulsion, respectively. It is found that the low pH and the dielectric constant inhibit the generation of the substrate O2-· in the reverse microemulsion which is later improved by increasing the above two factors. It solves the problem of the generation of O2- which create a new way for the determination of the activity of SOD in the microenvironment.
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