Poly(p-aminobenzene sulfonic acid)-modified glassy carbon electrode for simultaneous detection of dopamine and ascorbic acid

Jin, Geng Bang; Zhang, Yuzhong; Wei, Cheng

doi:10.1016/j.snb.2004.11.018

Cited by 190 publications

(102 citation statements)

References 32 publications

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“…The slope was of −58.75mV/pH unit. The nearly Nernstian slope obtained here suggests two-proton, twoelectron transfer process for dopamine oxidation [28][29][30][31].…”

Section: Effect Of Ph On Da Oxidationsupporting

confidence: 55%

Selective and sensitive detection of dopamine in the presence of ascorb ic acid and uric acid at a Sonogel - Carbon L - Histidine modified electrode

atyah¹,

Bounab²,

Choukairi³

et al. 2018

jmes

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Design and application of sensitive and selective electrochemical sensors for the determination of biologically important substances have gained considerable interest in recent years [1][2][3][4][5]. Dopamine (DA) is an important neurotransmitter molecule of catecholamines that is widely distributed in the mammalian central nervous system for message transfer. It plays a very important role in the function of central nervous, renal, hormonal, and cardio vascular systems [6]. Extreme abnormalities of DA levels can lead to brain disorders such as parkinsonism and schizophrenia [7,8]. Therefore, developing simple and rapid methods for the sensitive determination of DA in routine analysis is always a challenge [9,10]. In this context, electrochemical techniques have generated considerable attention, in recent years as good tools for the study of electrochemical mechanisms and for the detection and quantification of biological substances, in particular DA, AA and UA. However, AA and UA oxidize at similar potentials with DA and the result is an overlap of their voltammetric responses when using conventional electrodes. This overlap of potentials has an adverse effect on electrode selectivity and reproducibility [11,12]. In literature, there are many papers reporting the manufacture process and analytical applications involving Sonogels. The Sonogel-Carbon materials were patented and described first by Hidalgo-Hidalgo de Cisneros et al [13,14]. Recently a new type of graphite-based sol-gel electrode has been developed, the sonogel-carbon electrode, which was obtained using high-energy ultrasounds. In general, classical procedures for the synthesis of acid catalysed sol-gel-based electrode materials include the addition of an alcoholic solvent to the initial precursor mixture to make it homogenous. This is followed by the employment of an ultrasound bath for several minutes to promote the hydrolysis. in the other hand, by means of sonocatalysis, high-energy ultrasounds is applied directly to the precursors, and ultrasonic cavitation, sol-gel reactions occur in a unique environnement, leading to gels AbstractThe Sonogel-Carbon electrode is a special class of sol-gel electrode that exhibits efficient mechanical and electrical properties. In this study, SonogelCarbon modified with L-Histidine was used to prepare a novel electrochemical sensor. This new electrode showed excellent electrocatalytic behavior towards the oxidation of dopamine (DA) in PBS and human serum. The proposed sensor was applied to the simultaneous determination of dopamine, ascorbic acid (AA) and uric acid (UA) in pH 7.4 PBS and excellent results were obtained. A lower detection limit of 1×10 −7 M was achieved. This work, illustrates, for first time, the use of L-histidine Sonogel-Carbon electrode as a simple and low-cost tool for the selective and sensitive determination of DA in the presence of AA and UA.

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“…The slope was of −58.75mV/pH unit. The nearly Nernstian slope obtained here suggests two-proton, twoelectron transfer process for dopamine oxidation [28][29][30][31].…”

Section: Effect Of Ph On Da Oxidationsupporting

confidence: 55%

Selective and sensitive detection of dopamine in the presence of ascorb ic acid and uric acid at a Sonogel - Carbon L - Histidine modified electrode

atyah¹,

Bounab²,

Choukairi³

et al. 2018

jmes

View full text Add to dashboard Cite

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“…Therefore, both sensitivity and selectivity are highly desirable for real analytical applications and diagnostic researches. To meet these needs, considerable strategies have been devoted to modify the electrode surface by using new electrode materials to obtain polymer-modified electrode or self-assembled electrode [11][12][13][14][15], then the modified electrode can not only decrease the oxidation overpotential but also increase the sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline/AgCl Hybrid Materials for Selective Determination of Dopamine by Electrochemical Methods

Zhou¹,

Xie²,

Yuan³

et al. 2012

AJAC

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A promising electrochemical sensor based on PANI/AgCl hybrid material has been developed. The organic/inorganic hybrid material has exhibited good electrocatalytic properties by cyclic voltammetry measurement and differential pulse voltammetry. The oxidation overpotential of dopamine decreased dramatically, and the oxidation peak current increased significantly at PANI/AgCl/GCE compared to those obtained at PANI/GCE, AgCl/GCE and bare GCE, corresponding to the synergistic effect between PANI and inorganic particle AgCl. Under the optimized conditions, the linear response in the concentration range of 0.7 to 6.0 μM for the selective determination dopamine on the PANI/AgCl/GCE is obtained with a detection limit of 5.4 × 10 -8 M (S/N = 3) using differential pulse voltammetry. The results indicated that the modified electrode can be used to determine dopamine without the interference from ascorbic acid and ensure high sensitivity and good selectivity.

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“…One classification of these modified electrodes is a polymer thin film or self-assembled film [6][7][8][9][10][11][12]. These films always carry negative charges and so they can selectively detect the DA cation by electrostatic effect.…”

mentioning

confidence: 99%

Differential pulse voltammetric determination of dopamine with the coexistence of ascorbic acid on boron-doped diamond surface

Zhao

2007

Open Chemistry

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Electrochemical determination of dopamine (DA) in the presence of ascorbic acid (AA) was achieved on boron-doped diamond (BDD) film electrode by differential pulse voltammetry. The experimental results indicated that the oxidative peaks of DA and AA could be separated completely on anodically-treated (BDD) electrode without further modification, although these two peaks can not be separated on glassy carbon electrode. The peak separation of DA and AA was developed to be 0.44 V. High sensitivity was obtained to determine DA selectively with the coexisting of a large excess of AA in acidic media by DPV. The detection limit of DA was achieved to be 1.1 × 10 −6 M in the presence of AA with the concentration of 200 times more than DA. This technique was also applied to the determination of DA in real samples.

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Poly(p-aminobenzene sulfonic acid)-modified glassy carbon electrode for simultaneous detection of dopamine and ascorbic acid

Cited by 190 publications

References 32 publications

Selective and sensitive detection of dopamine in the presence of ascorb ic acid and uric acid at a Sonogel - Carbon L - Histidine modified electrode

Selective and sensitive detection of dopamine in the presence of ascorb ic acid and uric acid at a Sonogel - Carbon L - Histidine modified electrode

Polyaniline/AgCl Hybrid Materials for Selective Determination of Dopamine by Electrochemical Methods

Differential pulse voltammetric determination of dopamine with the coexistence of ascorbic acid on boron-doped diamond surface

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