Simultaneous Voltammetry Determination of Dihydroxybenzene Isomers by Nanogold Modified Electrode

A convenient electrochemical deposition method to prepare nanogold/glassy carbon modified electrode (nano-Au/GCE) is adopted. In 0.1 mol/L HAc-NaAc buffer solution (pH 4.61), the nano-Au/GCE shows an excellent electrocatalytical behavior for the redox of dihydroxybenzene. A simple, rapid and highly selective voltammetry for simultaneous determination of dihydroxybenzene isomers, hydroquinone, catechol, and resorcinol, is developed using the nano-Au/GCE. This method has been applied to the direct determination of the three dihydroxybenzene isomers in artificial wastewater.

[1]  Zhenhui Wang,et al.  Simultaneous determination of dihydroxybenzene isomers at single-wall carbon nanotube electrode , 2007 .

[2]  S. Dong,et al.  Electrocatalytic Oxidation of Catechol at Multi‐Walled Carbon Nanotubes Modified Electrode , 2004 .

[3]  O. Fatibello‐Filho,et al.  Biosensor based on paraffin/graphite modified with sweet potato tissue for the determination of hydroquinone in cosmetic cream in organic phase. , 2000, Talanta.

[4]  S. Yao,et al.  The preparation and characterization of poly(o-phenylenediamine)/gold nanoparticles interface for immunoassay by surface plasmon resonance and electrochemistry. , 2008, Colloids and surfaces. B, Biointerfaces.

[5]  Yunhua Wu,et al.  Direct electrochemistry of glucose oxidase in a colloid Au-dihexadecylphosphate composite film and its application to develop a glucose biosensor. , 2007, Bioelectrochemistry.

[6]  J. Kehr,et al.  Simultaneous determination of 5-hydroxyindoles and catechols by high-performance liquid chromatography with fluorescence detection following derivatization with benzylamine and 1,2-diphenylethylenediamine. , 2003, Journal of chromatography. A.

[7]  P Nagaraja,et al.  A sensitive and selective spectrophotometric estimation of catechol derivatives in pharmaceutical preparations. , 2001, Talanta.

[8]  A. Asan,et al.  Determination of major phenolic compounds in water by reversed-phase liquid chromatography after pre-column derivatization with benzoyl chloride. , 2003, Journal of chromatography. A.

[9]  H. Qi,et al.  Simultaneous Determination of Hydroquinone and Catechol at a Glassy Carbon Electrode Modified with Multiwall Carbon Nanotubes , 2005 .

[10]  Shusheng Zhang,et al.  Amperometric biosensor based on coentrapment of enzyme and mediator by gold nanoparticles on indium-tin oxide electrode. , 2007, Analytical biochemistry.

[11]  Y. Chai,et al.  Investigation of the electrochemical and electrocatalytic behavior of positively charged gold nanoparticle and L-cysteine film on an Au electrode. , 2007, Analytica chimica acta.

[12]  Ruo Yuan,et al.  Amperometric immunosensors based on layer-by-layer assembly of gold nanoparticles and methylene blue on thiourea modified glassy carbon electrode for determination of human chorionic gonadotrophin. , 2008, Talanta.

[13]  J-P Raskin,et al.  Electrical detection of DNA hybridization: three extraction techniques based on interdigitated Al/Al2O3 capacitors. , 2007, Biosensors & bioelectronics.

[14]  Tianyao Xie,et al.  Simultaneous determination of positional isomers of benzenediols by capillary zone electrophoresis with square wave amperometric detection. , 2006, Journal of chromatography. A.

[15]  F. Zhao,et al.  Direct electrochemistry of glucose oxidase entrapped in nano gold particles-ionic liquid-N,N-dimethylformamide composite film on glassy carbon electrode and glucose sensing. , 2007, Analytica chimica acta.

[16]  Wei-Li Wu,et al.  Selective determination of dopamine in the presence of high concentration of ascorbic acid using nano-Au self-assembly glassy carbon electrode. , 2008, Colloids and surfaces. B, Biointerfaces.

[17]  B. Jena,et al.  Gold nanoelectrode ensembles for the simultaneous electrochemical detection of ultratrace arsenic, mercury, and copper. , 2008, Analytical chemistry.

[18]  Zhihua Wang,et al.  A new scheme of hybridization based on the Au(nano)-DNA modified glassy carbon electrode. , 2007, Analytical biochemistry.

[19]  L. Kubota,et al.  Development of an enzymeless biosensor for the determination of phenolic compounds , 2002 .