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Issue:
A new method for improving the electrochemical resolution of dihydroartemisinin
Author(s):
XIE Weiling
,
WANG Hui
,
YANG Peihui
,
CAI Jiye
Pages:
9
-
12
Year:
2010
Issue:
5
Journal:
Chinese Journal of Analysis Laboratory
Keyword:
阳离子表面活性剂
;
双氢青蒿素
;
银电极
;
伏安法
;
Abstract:
采用电化学方法研究了阳离子表面活性剂对双氢青蒿素(DHA)在银电极表面伏安行为的影响, 并探讨了其电极界面的电化学机理. 随着阳离子表面活性剂十六烷基三甲基溴化铵(CTMAB)的加入, DHA的还原峰电位发生明显的变化. 当CTMAB的浓度为1.0×10-5 mol/L时, DHA的峰电位正移了102 mV, 活化能降低, DHA的过氧键更容易断裂. 当CTMAB的浓度继续增大至7.0×10-4 ...
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