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Author:
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Volume:
Issue:
huang zuo zuo de ji pu yan jiu
Author(s):
Zou Hon\ Yuan Zhuobin
Pages:
57
-
60
Year:
1998
Issue:
1
Journal:
Journal of the Graduate School of the Chinese Academy of Sciences
Keyword:
baicalin
;
polarography
;
Abstract:
用单扫示波极谱法研究了黄芩甙的电化学特性.在0.05mol/L柠檬酸钠+0.2mol/LHCl底液中,黄芩甙于-1.16V(P1)和-1.34V(P2)(vs.SCE)处产生两个二阶导数峰,前者为黄芩甙分子的还原波,后者为其一价阴离子的还原波,均为羰基的双电子还原波.利用峰P1可测定黄芩甙,线性范围为0.16~0.64mg/L和0.72~24mg/L,检测限为0.08mg/L.将该法用于中药黄芩中黄芩甙的测定时,获得满意结果
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