Mass transport effects in electroanalysis of La3+ with alizarin derivatives at quaternized polyvinylpyridine modified electrodes

Shiu, Kwok-Keung; Harrison, David

doi:10.1016/0022-0728(89)80018-x

Cited by 13 publications

(3 citation statements)

References 37 publications

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“…Alizarin red S (ARS) has been widely used in the analysis of metal ions [8][9][10][11][12] because of its strong chelating abilities. It has been incorporated into polypyrrole-modified electrodes to the electrochemical analysis of Cu (I) and Cu (II) [13] .…”

Section: Introductionmentioning

confidence: 99%

The Application of Electrochemical Impedance Techniques in Analyzing the AC Response of Some Two-electron Transfer Dye Systems

Rashwan¹

2005

American J. of Applied Sciences

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Abstract:The Electrochemical Impedance Spectroscopic techniques (EIS) were used to investigate the behavior of some dye compounds (quinoid systems) characterized with 2e-transfer processes. For this purpose, Alizarin Red S (ARS), Alizarin Cyanine (AC), Alizarin Viridin (AV) and carminic acid were chosen for the measurements. The EIS experiments were performed using a small AC amplitude (10 mV p-p) in addition to a relatively wide frequency range (0.01 Hz ≤ f ≤ 10 5 Hz). The investigations were carried out at room temperature in aqueous media (HClO 4 , NaClO 4 and KNO 3 ) on the Hanging Mercury Drop Electrode (HMDE) and for comparison one experiment only was measured in aprotic solvent (DMF) on the Pt-disc electrode. The EIS diagrams of these systems were characterized in the complex plane by two fundamental observations, the first of which is a straight line crossing the real axis at an angle of 45 o (or at least nearly so) and the second one is two semicircles beside each other corresponding to high-frequency and low-frequency regions, which are implying the presence of wellseparated time constants. The EIS characteristic parameters for these dye systems were calculated and discussed.

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Section: Introductionmentioning

confidence: 99%

The Application of Electrochemical Impedance Techniques in Analyzing the AC Response of Some Two-electron Transfer Dye Systems

Rashwan¹

2005

American J. of Applied Sciences

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“…One approach for minimizing the over-voltage effects is through the use of chemically modified electrodes (CMEs), electro-chemically pre-treated glassy carbon electrodes, carbon paste containing cobalt phthalocyanines [18] and macrocyclic transition metal complexes [19,20], which have proven to be efficient catalysts for the oxidation of hydrazine. Sodium 1,2-dihydroxyanthraquinone-3-sulfonic acid (alizarin red S) (ARS), is well-known as a complexation agent for the photometric [21] and electrochemical [22,23] determination of small quantities of metal ions. It acts both as an electro-active [22][23][24][25] and a surface-active compound [22,25,26] and can be reversibly reduced to anthrahydroquinone [26].…”

Section: Introductionmentioning

confidence: 99%

“…Sodium 1,2-dihydroxyanthraquinone-3-sulfonic acid (alizarin red S) (ARS), is well-known as a complexation agent for the photometric [21] and electrochemical [22,23] determination of small quantities of metal ions. It acts both as an electro-active [22][23][24][25] and a surface-active compound [22,25,26] and can be reversibly reduced to anthrahydroquinone [26].…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic oxidation of hydrazine with alizarin red S as a homogenous mediator on the glassy carbon electrode

Mazloum-Ardakani

Mazidi²,

Mashhadizadeh

et al. 2010

Sci. China Chem.

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Electro-catalytic oxidation and detection of hydrazine on a glassy carbon electrode, at pH 6.0, was studied by using alizarin red S as a homogeneous mediator. The overall number of electrons involved in the catalytic oxidation of hydrazine and that involved in the rate-determining step were four and one, respectively. The interfering effect of some cations, anions and organic compounds were examined. Peak current for this process varied linearly with the square root of the scan rate. The kinetic parameters, such as the electron transfer coefficient (  ) and catalytic rate constant (k), were determined using cyclic voltammetry, linear sweep voltammetry and chronoamperometry. The electro-catalytic response was optimized with regards to the pH, scan rate, hydrazine concentration and other variables. alizarin red S, hydrazine, glassy carbon electrode, electro-catalytic oxidation, voltammetry

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A Selective Film Based on Poly(3‐octylthiophene) Doped with Dihydroxyanthraquinone Sulfonate

et al. 2008

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A stable film of poly(3-octylthiophene) -dihydroxyanthraquinone sulfonate has been synthesized electrochemically in non-aqueous solution. The incorporation of dihydroxyanthraquinone sulfonate as an anionic complexing ligand into poly(3-octylthiophene) film during electropolymerization was achieved and copper ions were accumulated by reduction on the electrode surface. The presence of dihydroxyanthraquinone sulfonate during the electrochemical polymerization of 3-octylthiophene is shown to impact the sensitivity and the stability of the organic conducting film electrode response. The electroanalysis of copper(II) ions using conducting polymer electrode was achieved by differential pulse anodic stripping voltammetry with remarkable selectivity. The analytical performance was evaluated and linear calibration graphs were obtained in the concentration range of 50 -400 ng mL À1 copper(II) ion for 240 seconds accumulation time and the limit of detection was found to be 7.8 ng mL À1 . To check the selectivity of the proposed stripping voltammetric method for copper(II) ion, various metal ions as potential interferents were tested. The developed method was applied to copper(II) determination in certified reference material, NWRI-TMDA-61, trace elements in fortified water.

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Mass transport effects in electroanalysis of La3+ with alizarin derivatives at quaternized polyvinylpyridine modified electrodes

Cited by 13 publications

References 37 publications

The Application of Electrochemical Impedance Techniques in Analyzing the AC Response of Some Two-electron Transfer Dye Systems

The Application of Electrochemical Impedance Techniques in Analyzing the AC Response of Some Two-electron Transfer Dye Systems

Electrocatalytic oxidation of hydrazine with alizarin red S as a homogenous mediator on the glassy carbon electrode

A Selective Film Based on Poly(3‐octylthiophene) Doped with Dihydroxyanthraquinone Sulfonate

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