Simultaneous voltammetry determination of dihydroxybenzene isomers by poly-bromophenol blue/carbon nanotubes composite modified electrode

Autor: Jinxiang Zeng, Wanzhi Wei, Chunyuan Tao, Pinghua Yang
Rok vydání: 2006
Předmět:
Zdroj: Bulletin of environmental contamination and toxicology. 79(1)
ISSN: 0007-4861
Popis: A novel modified electrode was constructed by electropolymerization of bromophenol blue at a multi-walled carbon nanotubes modified glassy carbon electrode. The electrode developed was used for the simultaneous determination of the isomers of dihydroxybenzene in environmental samples using a voltammetry method. There was a linear relationship over the range 10(-6)-10(-4 )mol L(-1) of hydroquinone, catechol and resorcinol; the detection limits was 3 x 10(-7) mol L(-1). The constructed electrode showed excellent reproducibility and stability. Actual water samples were analyzed and satisfactory result was obtained.
Databáze: OpenAIRE