NEEDLE-TYPE SENSOR ARRAY FOR SIMULTANEOUS MEASUREMENT OF DISSOLVED OXYGEN AND REDOX POTENTIAL IN SITU

摘要

This paper describes new needle-type microelectrode array(MEA)sensors for in situ measurements of dissolved oxygen(DO)and oxidation-reduction potential(ORP).The sensors have small tip size and exhibit high consistency due to batch fabrication,improved signal stability and faster response times.The sensors are being applied to simultaneous measurements of DO and ORP microprofiles in live multi-species biofilms.