Hydroquinone modified chitosan/carbon film electrode for the selective detection of ascorbic acid

Jirimali, Harishchandra D.; Nagarale, Rajaram K.; Saravanakumar, D.; Lee, Jong Myung; Shin, Woonsup

doi:10.1016/j.carbpol.2012.09.024

Cited by 29 publications

(16 citation statements)

References 22 publications

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“…Another example of modification of carbon composite electrode is voltammetric determination of catechine in samples of teas, where the copper phosphate is added to increase the signal 19. Many other compounds can be used as modifiers for achieving desired properties, e.g., enzymes 15, 20, synthetic polymers 21, organometallic compounds 22, or polysaccharides 23.…”

Section: Introductionmentioning

confidence: 99%

Defect‐Rich CoP/Nitrogen‐Doped Carbon Composites Derived from a Metal–Organic Framework: High‐Performance Electrocatalysts for the Hydrogen Evolution Reaction

et al. 2015

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A defect‐rich CoP/nitrogen‐doped carbon composite is reported for the first time derived from ZIF‐67 by means of low‐temperature phosphidation process. As a hydrogen evolution reaction electrocatalyst, the obtained CoP‐N‐C has high HER activity and good stability with a low onset overpotential of 31 mV, a small Tafel slope of 42 mV dec−1, a large exchange current density of 1.6×10−1 mA cm−2, and a 10 mA cm−2 current density at overpotential 91 mV.

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Section: Introductionmentioning

confidence: 99%

Defect‐Rich CoP/Nitrogen‐Doped Carbon Composites Derived from a Metal–Organic Framework: High‐Performance Electrocatalysts for the Hydrogen Evolution Reaction

et al. 2015

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“…It is clear that the PB/CS/CC electrode of ascorbic acid has low detection limit and higher sensitivity. In particular, the PB/CS/CC electrode’s sensitivity is calculated to be 1.64 A M −1 , which is larger than that of other AA sensors, for example, 0.194 A M −1 for electrospun iridium oxide nanofibers modified glass carbon electrode 36, 0.141 A M −1 for minopyrimidyl functionalized conductive polymer electrode 37, 0.760 A M −1 for hydroquinone modified chotisan/carbon film electrode 38. The CoPd/C modified electrode also has high performance, because Pd‐based catalysts contain noble metal which has excellent electrical conductivity, high surface and chemical stability 39.…”

Section: Resultsmentioning

confidence: 78%

Prussian Blue and Chitosan Modified Carbon Cloth Electrode as a High Performance Sensor of Ascorbic Acid

Yue

Tricard

et al. 2016

Electroanalysis

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The modification of carbon cloth (CC) with Prussian blue (PB) and chitosan (CS) leads to the elaboration of a composite electrode (PB/CS/CC), employed to electrocatalyze the oxidation of ascorbic acid (AA). This electrode exhibits great performances towards the AA detection, thanks to the good conductivity of CC and the efficient catalytic properties of PB. The modified electrode shows a rapid response of less than 2 s, a very high sensitivity of 1.64 A ⋅ M−1 and a good resistance towards common interferences. Its linear range goes from 3×10−7 M to 3×10−4 M (R2=0.993), with a detection limit (S/N=3) of 2.50×10−7 M. Finally, such electrode can detect AA in commercial vitamin C; it is thus a good candidate as a simple and convenient sensor for general applications.

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“…4). This range is better than hydroquinone-modified chitosan/carbon film electrode (Jirimali et al 2013), polyaniline-modified screenprinted carbon electrode (Kit-Anan et al 2012), poly(bromocresol purple)-modified glassy carbon electrode (Zhang et al 2013), and gold nanoparticles-TiO 2 nanotubesTi electrode (Hosseini et al 2011). At higher concentrations, a standard curve showed a deviation from linearity.…”

Section: Analytical Characteristicsmentioning

confidence: 96%

Ascorbic Acid Detection with MnO2-Modified GCPE

2015

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In this study, manganese(IV) oxide (MnO 2 ) nanoparticle (np)-modified glassy carbon paste electrode is used for ascorbic acid (AA) detection in fruit juice samples. The experimental parameters like MnO 2 np amount and pH were optimized by using modified full factorial design model. By means of this model, the number of experiments has been reduced. Under optimal conditions, the linear range for AA was obtained between 2.64×10 −6 and −1.5×10 −3 M. Limit of detection (LOD) (3 s/m) and relative standard deviation (RSD) were calculated as 8×10 −7 M and 4.56 %, respectively. Developed sensor was applied to AA detection in fruit juice samples.

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Hydroquinone modified chitosan/carbon film electrode for the selective detection of ascorbic acid

Cited by 29 publications

References 22 publications

Defect‐Rich CoP/Nitrogen‐Doped Carbon Composites Derived from a Metal–Organic Framework: High‐Performance Electrocatalysts for the Hydrogen Evolution Reaction

Defect‐Rich CoP/Nitrogen‐Doped Carbon Composites Derived from a Metal–Organic Framework: High‐Performance Electrocatalysts for the Hydrogen Evolution Reaction

Prussian Blue and Chitosan Modified Carbon Cloth Electrode as a High Performance Sensor of Ascorbic Acid

Ascorbic Acid Detection with MnO2-Modified GCPE

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