CO gas sensor;
alcohol interference;
catalyst filter;
Nafion;
D O I:
10.1016/S0925-4005(99)00463-3
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
The method to eliminate alcohol interference for CO gas sensor using oxide semiconductor is explored. Some oxidizing agents and reducing agents were tested as the filtering materials. Nafion was found to be the most effective. This property was improved by the treatment to form the Nafion into complete H-type before measurement. The elimination capability is correlated with the acidities of the filtering materials. (C) 2000 Elsevier Science S.A. All rights reserved.