期刊
ANALYTICA CHIMICA ACTA
卷 481, 期 1, 页码 65-74出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0003-2670(03)00067-9
关键词
choline; neurotransmitters; voltammetry; biosensor; CNS
A ceramic-based multisite microelectrode array to measure choline in vivo in brain tissues is described. The microelectrodes were linear to 200 muM choline (R-2 = 0.999 +/- 0.001) with a detection limit of approximately 0.4 muM (S/N of 3) in both single microelectrode and self-referencing amperometric recording modes. The 90% rise time of the sensor was 1.4 s, allowing for rapid measures of choline. Good selectivity (>300:1) was observed over interferents such as ascorbic acid, uric acid, and DOPAC in the single microelectrode mode. However, a self-referencing recording mode was needed to remove potassium-evoked dopamine signals in rat striatum. In vivo measurements of choline in the rat brain are presented. (C) 2003 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据