期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 174, 期 -, 页码 225-230出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2012.07.109
关键词
Microelectrode; Generator/collector; Screen-printing; Dual-electrode; Flow cell
资金
- Region de Bretagne
A simple and cheap method has been developed to fabricate generator/collector microelectrodes. The elaboration of these electrodes consists in the deposit of consecutive layers of conductive ink and insulator by screen-printing. The two resulting working surfaces (microbands) are situated on the edge of the sensor and are separated by a very thin layer of insulator (17 mu m). These microbancls may be individually polarized at different potentials in order to generate a species at one of them and detect it at the other one. Cyclic voltammetry has been used to test and characterize the two working surfaces. The capacity of these dual-electrodes for working as generator/collector sensors is demonstrated by recording the generated and collected currents by chronoamperometry with a bipotentiostat. The collected current is about 30% of the generated current. These sensors have been adapted to a flow cell, allowing detection of sub-nanomoles of solute. (C) 2012 Elsevier 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