Title of article :
Coulometric detector based on porous carbon felt working electrode for flow injection analysis
Chen، نويسنده , , Guo Nan and Liu، نويسنده , , Jiang Sheng and Duan، نويسنده , , Jian Ping and Chen، نويسنده , , Hong Qing، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2000
A coulometric detector based on carbon felt as working electrode has been designed. Ascorbic acid, hydroquinone, gallic acid and sulfur dioxide were used as electroactive compounds to determine the electrochemical characteristics of this detector. The coulometric conversion efficiency, selectivity, linear response range, detection limit and mass transfer coefficient were investigated in order to use the detector as a cleanup device in a flow injection system with dual-detector. This system has been used for determination of sulfur dioxide in wine, and the results are compared to those from the aspiration-oxidation method.
Coulometric detector , Porous carbon felt , Flow injection analysis , Sulfur dioxide