An amperometric sensor for uric acid based on ordered mesoporous carbon-modified pyrolytic graphite electrode
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Yonggen Ma
,
Guangzhi Hu
Abstract
A novel amperometric sensor for uric acid based on ordered mesoporous carbon modified pyrolytic graphite electrode was developed. Uric acid oxidation was easily catalyzed by this electrode in a phosphate buffer solution at pH 7.0, with an anodic potential decrease about 140 mV compared to bare pyrolytic graphite electrode. The uric acid level was determined by the amperometric method, at a constant potential of 0.31 mV, the catalytic current of uric acid vs. its concentration showed a good linearity in the range of 1.0 × 10−6−1.0 × 10−4 mol L−1, with a correlation coefficient of 0.999. The detection limit was 4.0 × 10−7 mol L−1. The proposed method could be effectively used for uric acid amperometric sensing in human urine.
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© 2009 Institute of Chemistry, Slovak Academy of Sciences
Articles in the same Issue
- Utilization of solid phase spectrophotometry for the determination of trace amounts of copper using 5-(2-benzothiazolylazo)-8-hydroxyquinoline
- Analysis of spectinomycin in fermentation broth by reversed-phase chromatography
- An amperometric sensor for uric acid based on ordered mesoporous carbon-modified pyrolytic graphite electrode
- Utility of π-acceptor reagents for spectrophotometric determination of sulphonamide drugs via charge-transfer complex formation
- A graph theoretical approach to the effect of mutation on the flexibility of the DNA binding domain of p53 protein
- Aquaculture by-product: a source of proteolytic enzymes for detergent additives
- Effect of anthraquinone on brightness value and crystalline structure of pulp during soda processes
- Selection of a method for determination of activity of pectinolytic enzymes in berry fruit materials
- Study on polymeric micelles of poly(γ-benzyl l-glutamate)-graft-poly(ethylene glycol) copolymer and its mixtures with poly(γ-benzyl l-glutamate) homopolymer in ethanol
- Synthesis and characterization of mesoporous molecular sieves
- Growth mechanism and characterization of ZnO nano-tubes synthesized using the hydrothermal-etching method
- Novel use of silicon nanocrystals and nanodiamonds in biology
- Fluoride anion sensing using colorimetric reagents containing binaphthyl moiety and urea binding site
- Spectrophotometric methods for sertraline hydrochloride and/or clidinium bromide determination in bulk and pharmaceutical preparations
- Study of physicochemical properties-antitubercular activity relationship of naphthalene-1,4-dione analogs: A QSAR approach
- Spectroscopic study of protonation of oligonucleotides containing adenine and cytosine
- Rheological properties of doughs with buckwheat and quinoa additives
- Synthesis and isolation of methyl bismuth cysteine and its definitive identification by high resolution mass spectrometry
Articles in the same Issue
- Utilization of solid phase spectrophotometry for the determination of trace amounts of copper using 5-(2-benzothiazolylazo)-8-hydroxyquinoline
- Analysis of spectinomycin in fermentation broth by reversed-phase chromatography
- An amperometric sensor for uric acid based on ordered mesoporous carbon-modified pyrolytic graphite electrode
- Utility of π-acceptor reagents for spectrophotometric determination of sulphonamide drugs via charge-transfer complex formation
- A graph theoretical approach to the effect of mutation on the flexibility of the DNA binding domain of p53 protein
- Aquaculture by-product: a source of proteolytic enzymes for detergent additives
- Effect of anthraquinone on brightness value and crystalline structure of pulp during soda processes
- Selection of a method for determination of activity of pectinolytic enzymes in berry fruit materials
- Study on polymeric micelles of poly(γ-benzyl l-glutamate)-graft-poly(ethylene glycol) copolymer and its mixtures with poly(γ-benzyl l-glutamate) homopolymer in ethanol
- Synthesis and characterization of mesoporous molecular sieves
- Growth mechanism and characterization of ZnO nano-tubes synthesized using the hydrothermal-etching method
- Novel use of silicon nanocrystals and nanodiamonds in biology
- Fluoride anion sensing using colorimetric reagents containing binaphthyl moiety and urea binding site
- Spectrophotometric methods for sertraline hydrochloride and/or clidinium bromide determination in bulk and pharmaceutical preparations
- Study of physicochemical properties-antitubercular activity relationship of naphthalene-1,4-dione analogs: A QSAR approach
- Spectroscopic study of protonation of oligonucleotides containing adenine and cytosine
- Rheological properties of doughs with buckwheat and quinoa additives
- Synthesis and isolation of methyl bismuth cysteine and its definitive identification by high resolution mass spectrometry
