P2.8.9 Modification of Screen Printed Gold Electrodes with Conducting Polymers and Its Application for Drop-in Nitrite Sensing

Ta-Jen Li, Chia-Yu Lin, Kuan-Chieh Huang, Chung-Wei Kung, Chun-Chieh Wang, Po-Yen Chen, R. Vittal, Kuo-Chuan Ho, Jen-Yuan Wang & Chih-Wei Hu
Electrochemical detection of nitrite based on a modified electrode is conducted in this study. A screen printed gold electrode (SPGE) is selected as the substrate, and the conducting polymer, poly (3,4- (2',2'- diethylpropylene)dioxythiophene) (PProDOT-Et2), is electrodeposited onto the SPGE as a modifier by using a cyclic voltammetric (CV) method. This modified electrode is designated as SPGE/PProDOT-Et2. Instead of using the conventional three-electrode sensing system, we establish a drop-in sensing system for detecting nitrite. The volume...