Surface Improvement of Glassy Carbon Electrode Anodized in Triethylene Glycol and Its Application to Electrochemical HPLC Analysis of Protein-Containing Samples

Maeda, Hatsuo; Katayama, Kazunori; Matsui, Rie; Yamauchi, Yuji; Ohmori, Hidenobu

doi:10.2116/analsci.16.293

Cited by 30 publications

(20 citation statements)

References 19 publications

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“…The immobilisation of PVA on GCE was in accordance with the procedures reported by Ohmori and co-workers [119,120] and Ye and Crooks [121]. It is thought the surface of the GCE is firstly anodized, thereby generating cation radicals which react with PVA by nucleophilic attack on the terminal hydroxyl groups [119][120][121] and forming ether linkages between the PVA and the carbon surface. The modified GCE demonstrated potent and persistent electrocatalytic behaviour, leading to the observation of well-separated oxidation peaks in CV or DPV for AA, dopamine and UA with reduction of the overpotentials.…”

Section: Polymers Based On Poly(vinyl Alcohol)supporting

confidence: 69%

“…Recently, a novel GCE covalently modified with PVA has been fabricated through an electrochemical oxidation procedure and was used as an effective sensor for selective and sensitive determination of UA, AA and dopamine individually in the presence of the other two species [118]. The immobilisation of PVA on GCE was in accordance with the procedures reported by Ohmori and co-workers [119,120] and Ye and Crooks [121]. It is thought the surface of the GCE is firstly anodized, thereby generating cation radicals which react with PVA by nucleophilic attack on the terminal hydroxyl groups [119][120][121] and forming ether linkages between the PVA and the carbon surface.…”

Section: Polymers Based On Poly(vinyl Alcohol)mentioning

confidence: 76%

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Electrochemical Detection of Uric Acid in Mixed and Clinical Samples: A Review

et al. 2011

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The present review has sought to explore the technological advances that have been made in recent years towards the selective analysis of uric acid and critically evaluate how they could, in fact, be exploited as a basis for a multi analyte sensor incorporating uric acid detection. Numerous strategies have evolved in recent years but these have invariably focused on the manufacture and response characterization of discrete sensors. Various methods of obtaining selective detection such as use of uricase enzymes, nanoparticles, carbon nanotubes, polymers, conducting polymers and MIPs are also discussed along with the clinical relevance of UA determination.

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Section: Polymers Based On Poly(vinyl Alcohol)supporting

confidence: 69%

Section: Polymers Based On Poly(vinyl Alcohol)mentioning

confidence: 76%

Electrochemical Detection of Uric Acid in Mixed and Clinical Samples: A Review

et al. 2011

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“…Modification of previously functionalized carbon-fiber surfaces with G4OHPt was carried out by scanning the carbon potential at 10 mV s -1 between 0 and + 1,000 mV [21][22][23][24] in aqueous 0.1 M NaF + 40 lM G4OHPt. Ag/ AgCl (3 M NaCl) was used as the reference electrode here, and the counter electrode was a platinum wire.…”

Section: Modification Of the Pretreated Carbon-fiber Electrodesmentioning

confidence: 99%

“…Maeda et al [20][21][22][23] have reported extensive work on the covalent modification of glassy-carbon electrodes for analytical purposes by linking alkanol molecules via an ether linkage produced by electrochemical oxidation in acid media. On the basis of their work, Ye et al [24,25] recently developed a strategy for grafting dendrimerencapsulated platinum nanoparticles to glassy-carbon electrodes by cycling the potential.…”

Section: Introductionmentioning

confidence: 99%

Immobilization of dendrimer-encapsulated platinum nanoparticles on pretreated carbon-fiber surfaces and their application for oxygen reduction

et al. 2007

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This paper reports the successful preparation of catalytic electrodes based on carbon-fiber paper modified with dendrimer-encapsulated platinum nanoparticles. The metallic nanoparticles were first synthesized from solution within generation-four hydroxyl-terminated PAMAM dendrimers, which serve as a carrier for their subsequent immobilization on the solid substrates. The carbon-fiber surfaces were activated by means of three alternative anodic pretreatments and then loaded with the dendrimermetal nanocomposites by cycling of the carbon-electrode potential. The degree of oxidation of the carbon surface affects the anchoring of the dendritic material, the coverage of which is indicated by the electroactive area of the encapsulated platinum. The modified carbon-fiber surfaces pretreated by cyclic polarization are found to be electrocatalytic for the oxygen reduction reaction, presenting a good exchange-current density at low platinum loading.

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“…Strategies developed for circumventing adsorption interferences include coating of the working electrode with a permselective polymeric layer [1 -3] or covalent attachment of moieties with antifouling properties [4,5]. Also, ultrasonication has proven effective in reducing adsorption interferences [6,7].…”

Section: Introductionmentioning

confidence: 99%

Use of Sodium Dodecyl Sulfate for Suppression of Electrode Fouling in the Voltammetric Detection of Biologically Relevant Compounds

Hoyer

Jensen

2005

Electroanalysis

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An investigation is reported on whether the anionic surfactant sodium dodecyl sulfate (SDS) was effective in suppressing electrode fouling by proteins and phospholipids in the square wave voltammetric detection of a range of bioorganic compounds (dopamine, epinephrine, catechol, NADH, uric acid, guanine, and acetaminophen) at a glassy carbon electrode. Albumin, globulin, and phosphatidylethanolamine served as test interferents. For most of the analytes, the interferents caused a significant decrease as well as an anodic shift of the signal. When SDS was added to the measuring solution prior to the interferent, these effects were markedly reduced or eliminated. In contrast, addition of SDS subsequent to the interferent did not always fully reverse the interference effects, and therefore the fouling of the electrode can be irreversible. Depending on the analyte, SDS alone caused either a moderate decrease or an enhancement of the signal, and positive as well as negative peak shifts were seen. However, these effects were generally much smaller in magnitude than those caused by the interferents. SDS is therefore useful as suppressor of adsorption interferences in the voltammetric detection of bioorganic analytes, and matrix effects from surface-active constituents of the sample are minimized.

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Surface Improvement of Glassy Carbon Electrode Anodized in Triethylene Glycol and Its Application to Electrochemical HPLC Analysis of Protein-Containing Samples

Cited by 30 publications

References 19 publications

Electrochemical Detection of Uric Acid in Mixed and Clinical Samples: A Review

Electrochemical Detection of Uric Acid in Mixed and Clinical Samples: A Review

Immobilization of dendrimer-encapsulated platinum nanoparticles on pretreated carbon-fiber surfaces and their application for oxygen reduction

Use of Sodium Dodecyl Sulfate for Suppression of Electrode Fouling in the Voltammetric Detection of Biologically Relevant Compounds

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