Simultaneous voltammetry determination of dihydroxybenzene isomers by poly-bromophenol blue/carbon nanotubes composite modified electrode.
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.
Yang
Pinghua
P
State Key Laboratory of Chemical, Biological Sensing Technologies & Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
Wei
Wanzhi
W
Tao
Chunyuan
C
Zeng
Jinxiang
J
D001978:Bromphenol Blue / Q000737:chemistry; D004563:Electrochemistry; D004566:Electrodes; D007202:Indicators and Reagents / Q000737:chemistry; D007536:Isomerism; D037742:Nanotubes, Carbon; D010636:Phenols / Q000032:analysis*; D011108:Polymers; D015203:Reproducibility of Results
D007202:Indicators and Reagents; D037742:Nanotubes, Carbon; D010636:Phenols; D011108:Polymers; D001978:Bromphenol Blue