Properties of glucose sensors prepared by the electropolymerization of a positively charged pyrrole derivative
Properties of glucose sensors prepared by the electropolymerization of a positively charged pyrrole derivative
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DOI：
10.1016/s1388-2481(99)00095-8
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发表时间：
1999-10-01
影响因子：
5.4
通讯作者：
Kunugi, A
中科院分区：
文献类型：
--
作者：
Yasuzawa, M;Kunugi, A
在葡萄糖氧化酶的存在下，在裸铂电极和涂有Nafion的铂电极上，通过电聚合具有带正电荷基团的吡咯衍生物3-（1-吡咯基）丙基三甲基溴化铵来制备电流型葡萄糖传感器。在10.0和6.0 mmol dm ~（-3）范围内，葡萄糖浓度与电极响应电流呈线性关系。Nafion内膜的引入降低了电活性化合物（如抗坏血酸、尿酸和乙酰氨基酚）对传感器响应的影响，但不能充分消除这些化合物的影响。然而，Nafion内膜是有效地提高电极的稳定性。有Nafion膜的电极的响应电流在50天以上保持稳定，而没有Nafion膜的电极在使用20天后显著降低。(C)1999年Elsevier Science S.A. All rights reserved.
Amperometric glucose sensors were prepared by electropolymerization of a pyrrole derivative having the positively charged group, 3-(1-pyrrolyl)propyltrimethylammonium bromide, in the presence of glucose oxidase on bare and Nafion-coated platinum electrodes. Linear relationships between the glucose concentration and the response current for the electrode with and without Nafion inner film were up to 10.0 and 6.0 mmol dm(-3), respectively. The introduction of Nafion inner film lowered the influence of electroactive compounds, such as ascorbic acid, uric acid, and acetoaminophen, on the sensor response, but was not able to eliminate the influence of these compounds sufficiently. However, Nafion inner film was effective in increasing the electrode stability. The response current of the electrode with Nafion film remained stable for more than 50 days, while that without Nafion film was significantly reduced after 20 days of use. (C) 1999 Elsevier Science S.A. All rights reserved.