期刊名称:Universitatea Politehnica din Timisoara. Buletinul Stiintific. Seria Chimie si Ingineria Mediului
印刷版ISSN:1224-6018
出版年度:2007
卷号:52(66)
期号:01-02
出版社:Universitatea Politehnica din Timisoara
摘要:A modified electrode obtained by the electrochemical depositon of polyaniline from aqueous acid solutions on a rough substrate of skeleton nickel has been prepared and tested as potentiometric sensor. The detection properties of the skeleton Ni-polyaniline selective electrode were determined for nitrate and nitrite anions. The modified electrode presents short response time and Nernstian behaviour in the concentration range of 10-1 to 5⋅10-5 mol L-1. The selectivity coefficient for nitrate in the presence of nitrite was calculated according to the separate solution method.