Title :
Potentiometric microelectrode sensors for in situ environmental monitoring
Author :
Lee, Jin-Hwan ; Myers, Rhonda R. ; Jang, Am ; Bhadri, Prashant ; Beyette, Fred, Jr. ; Timmons, William ; Bishop, Paul L. ; Papautsky, Ian
Author_Institution :
Dept. of Electr. & Comput. Eng. & Comput. Sci., Cincinnati Univ., OH, USA
Abstract :
A new breed of microelectrode sensor arrays for oxidation-reduction potential (ORP) measurements in situ at environmental sites has been successfully developed. The microelectrodes were fabricated from glass using a two-step, HF-based meniscus etching process, and demonstrated electrochemical performance nearly identical to that of the commercial millielectrode, with significantly faster response times.
Keywords :
electrochemical sensors; etching; glass; microelectrodes; microsensors; oxidation; reduction (chemical); HF; ORP measurement; electrochemical sensor arrays; in situ environmental monitoring; meniscus glass etching process; microelectrode sensor arrays; millielectrode; oxidation-reduction potential measurement; potentiometric microelectrode sensors; sensor response times; Biosensors; Chemicals; Computerized monitoring; Electrodes; Etching; Glass; Microelectrodes; Pollution measurement; Sensor arrays; Soil measurements;
Conference_Titel :
Sensors, 2004. Proceedings of IEEE
Print_ISBN :
0-7803-8692-2
DOI :
10.1109/ICSENS.2004.1426177
