Methylene blue poly(vinyl chloride) membrane electrode based on the methylene blue tetraphenylborate ion-pair complex and its application to pharmaceutical analysis

被引：0
|
作者：
Wen, ML [1 ]
Chen, X [1 ]
Zhao, YB [1 ]
Wang, CY [1 ]
机构：
[1] Yunnan Univ, Dept Chem, Kunming 650091, Peoples R China
来源：
ANALYTICAL LETTERS | 1998年 / 31卷 / 07期
关键词：
methylene blue; methylene blue plastic membrane electrode; pharmaceutical analysis;
D O I：
暂无
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A methylene blue (MB) poly (vinyl chloride) membrane electrode based on MBtetraphenylborate (TPB) ion-pair complex is described. The linear response covers the range 1x10(-2) -1x10(-6) mof dm(-3) MB solution, with a slope of 56.5+/-0.5 mv/decade (pH range 3.0-1 0.0). The detection limit is 7.75 x 10(-7) mol dm(-3). The electrode shows' stability, good reproducibility and fast response. Interferences from common inorganic cations and some organic bases are negligible. These characteristics of the electrode enabled it to be used successfully for the determination of MB in injection.
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页码：1121 / 1130
页数：10
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