Journal of electroanalytical chemistry (J ELECTROANAL CHEM)

Publisher: Elsevier

Current impact factor: 2.73

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 2.729
2013 Impact Factor 2.871
2012 Impact Factor 2.672
2011 Impact Factor 2.905
2010 Impact Factor 2.732
2009 Impact Factor 2.338
2008 Impact Factor 2.484
1996 Impact Factor 1.832
1995 Impact Factor 1.735
1994 Impact Factor 2.02
1993 Impact Factor 1.697
1992 Impact Factor 2.202

Impact factor over time

Impact factor

Additional details

5-year impact 2.79
Cited half-life >10.0
Immediacy index 0.63
Eigenfactor 0.02
Article influence 0.57
ISSN 1572-6657

Publisher details


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    • Permitted deposit due to Funding Body, Institutional and Governmental policy or mandate, may be required to comply with embargo periods of 12 months to 48 months
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    • Must link to publisher version with DOI
    • Author's post-print must be released with a Creative Commons Attribution Non-Commercial No Derivatives License
    • Publisher last reviewed on 03/06/2015
  • Classification

Publications in this journal

  • No preview · Article · Feb 2016 · Journal of electroanalytical chemistry
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    ABSTRACT: A simple strategy to fabricate an efficient electrochemical sensor for epinephrine (EP) oxidation is developed by selective etching of the electrodeposited thin Au-Ag alloyed film. The electrochemical characterization of obtained nanoporous spongelike Au-Ag electrodes was carried out by cyclic voltammetry (CV) and chronoamperometry. It was found that the nanoporous Au-Ag electrode exhibits a significantly higher electrocatalytic activity toward EP oxidation when comparing with a bulk Au electrode. The performed electrochemical tests demonstrated that EP oxidation and reduction processes are controlled by diffusion. The transfer coefficient (α = 0.55) and total number of electrons involved in the anodic oxidation of epinephrine to adrenalinequinone (n = 2) as well as the diffusion coefficient of EP in the 0.1 M phosphate buffer solution PBS (D = 1.29 × 10- 5 cm2 s- 1) were evaluated. Using chronoamperometry, the average catalytic rate constant was calculated to be 2.16 × 105 M- 1 s- 1. Under the optimized conditions, the electrochemical sensor exhibited a linear response for EP concentration over the range of 25-300 μM for linear sweep voltammetry (LSV), 10-100 μM for differential pulse voltammetry (DPV) and 25-700 μM for chronoamperometry. The DPV method has the highest sensitivity (1.52 mA cm- 2 mM- 1) and the lowest detection limit (5.05 × 10- 6 M).
    No preview · Article · Feb 2016 · Journal of electroanalytical chemistry
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    ABSTRACT: FEXRAV (Fixed Energy X-Ray Absorption Voltammetry) has been recently introduced as a powerful tool in electrochemistry. It consists in measuring the X-Ray absorption coefficient at a fixed X-Ray energy while the electrochemical potential of the material under investigation is varied at will in a conventional three-electrode electrochemical cell. In the case of Ag electrodes, the usefulness of FEXRAV might appear limited: first of all, Ag cannot assume an extended variety of oxidation state values as other transition metals. In addition, only the Ag-K edge is accessible in the hard X-Ray region that is needed for operando experiments. In turn, the final states are of p character, and therefore any charge state variation bound to the d orbitals (as happens in the electrochemistry of Ag) is difficult to observe in the XANES (X-Ray Absorption Near Edge Spectroscopy) region. However, Ag has plentiful applications in electrochemistry, in particular for what concerns the reduction of halogenated organic compounds. In this work we evidence the capabilities of FEXRAV in the case of Ag electrodes under working conditions in the presence of organic and inorganic halides. More specifically and for the first time, the adsorption of aqueous trichloromethane at a potential preceding the electron transfer reaction is observed. This paper therefore represents a significant advance for FEXRAV, and a fundamental contribution to the elucidation of the exceptional electrocatalytic activity of silver toward hydrodehalogenation reactions.
    No preview · Article · Jan 2016 · Journal of electroanalytical chemistry
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    ABSTRACT: Herein, impedimetric detection of THR could be achieved using an aptasensing platform based on carbon nanofibers enriched screen-printed electrodes (CNF-SPE). The resistance to charge transfer (Rct) was recorded using electrochemical impedance spectroscopy (EIS) technique before/after the immobilization of amino-modified DNA aptamer (APT) selective to thrombin (THR) onto the surface of CNF-SPEs and the specific interaction between APT and THR. The selectivity of the aptasensor was also tested in the presence of a random DNA oligonucleotide and a DNA aptamer that were different from THR specific APT. The impedimetric aptasensing of target protein was also explored in the fetal bovine serum (FBS) medium at different concentration levels of THR. Additionally, the selectivity of the aptasensor was tested against bovine serum albumin (BSA) and protein C (PC) in FBS medium. This CNF-SPE based aptasensor platform allows a reliable, sensitive and selective impedimetric monitoring of THR.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry
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    ABSTRACT: Simple and fast electroanalytical method for the detection of tin(II) in bronze has been developed. It is based on synergistic combination of boron-doped diamond electrode as sensitive voltammetric sensor and reaction electrochemistry. The voltammetric response is enhanced by chemical recycling of iodide after electrogeneration of iodine followed by reaction with Sn(II). The charge transfer for the oxidation of iodide to iodine on boron-doped diamond electrode was investigated and characterized in eight different electrolytes. Charge transfer coefficient (0.58 in 0.1 mol L- 1 H3PO4-0.35 in 0.1 mol L- 1 HCl), formal potential (0.65 V in 0.1 mol L- 1 HClO4-0.90 V in 0.1 mol L- 1 NaHCO3) and standard heterogeneous rate constant (4.6 × 10- 3 cm s- 1 for H3PO4-2.2 × 10- 3 cm s- 1 for NaHCO3) were estimated. Based on these values it was observed that the charge transfer is irreversible, but the response is suitable for the quantification of tin(II) in bronze for tire cords. The detection limit of 2.3 × 10- 7 mol L- 1 was achieved by linear sweep voltammetry. This value is comparable with some expensive and time consuming techniques routinely used for this type of determination.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry
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    ABSTRACT: Graphite/LNMO cells show severe capacity fade after being stored for one week at 55°C in the fully discharged state. The failure mechanism of the cell has been investigated by electrochemical methods and physical analysis techniques (XRD, SEM, FTIR and ICP-OES). Independent electrochemical analysis of anode and cathode extracted from the ET-stored cell suggests that both electrodes have significant capacity loss. It was observed that capacity loss of the aged cathode can be recovered by charging at a constant high potential (4.9 V vs. Li/Li+), while that of the aged anode cannot be recovered with a constant potential charge (10 mV vs. Li/Li+). Capacity fade for the LNMO cathode is attributed to sluggish kinetics of Li+ intercalation/deintercalation during cycling. Ex-situ surface analysis of the electrode reveals that the sluggish electrochemical kinetics is related to the formation of inactive surface layer on the cathode. Failure of the graphite electrode may result from Mn deposition and subsequent dissolution of the SEI layer on the anode.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry
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    ABSTRACT: A simple and inexpensive method for fabricating a sensitive and compact indirect sandwich type electrochemical ELISA for the detection of estradiol using a chitosan electrodeposited platinum (Pt) wire microelectrode was proposed. In this assay, anti-17β estradiol antibody produced in goat (goat anti-estradiol Ab) was used as the capture antibody which was immobilized on the chitosan coated Pt wire microelectrode, anti-17β estradiol antibody produced in mouse (mouse anti-estradiol Ab) was used as the detection antibody, and goat anti-mouse IgG (immunoglobulin G) conjugated with alkaline phosphatase (AP) was used as the secondary antibody. The effect of pre-coated layers (chitosan, the capture antibody, and the blocking reagent BSA) on the electron transfer resistance (Ret) at the surface of ELISA electrodes has been investigated and analyzed by the electrochemical impedance spectrum (EIS). 4-Aminophenyl phosphate (4-APP) was chosen as the AP substrate and the oxidation potential of the electroactive AP product, 4-aminophenol (4-AP), on the Pt electrode was determined to be + 0.14 V (vs. Ag/AgCl). The electrochemical ELISA was detected by constant potential amperometry at + 0.14 V in the Tris buffer (pH 9.0). The limit of detection of this assay was 2.7 × 10- 1 pg/mL with a wide detection range from 2.7 × 10- 1 pg/mL up to 1.0 × 105 pg/mL. The assay specificity evaluated by testing the cross-reactivity of the assay for progesterone and 17α-ethynylestradiol was found to be 0.033% and 3.4%, respectively. This assay has been tested with estradiol in spiked serum samples; however, further pretreatment of serum samples may be required to enhance precision and recovery.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry
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    ABSTRACT: The use of staircase voltammetry for the measurement of reversible diffusional redox species under a linear mass-transport regime leads to significant suppression of the peak currents (up to 20% for larger step sizes) and an increase in the peak-to-peak separation (cf. ΔEpp ∼ 70 mV at the reversible limit as opposed to 57 mV). These discrepancies between the voltammetric results of a staircase and true analogue voltammogram may lead to mis-interpretation of data. This work provides an overview of the differences between the two techniques in the macro-electrode reversible limit and provides new expressions which allow the peak current of a staircase voltammogram to be quantitatively analysed. Moreover, clear guidance is provided about which conditions the application of the provided equation is valid in the terms of mass-transport edge effects to the macro-electrode.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry
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    ABSTRACT: MicroRNAs (miRNAs) play vital roles in regulating gene expression and cellular processes. Dysregulation of miRNAs has been associated with a variety of diseases, which make them promising biomarkers. In this work, a simple and ultrasensitive electrochemical biosensor was developed for detection of target miRNA using DNA-based hybridization chain reaction (HCR) and biotin-strepavidin based amplification. In the presence of target miRNA, the hairpin DNA capture probes immobilized on gold electrode surface were opened. Then DNA initiator strands hybridized with the opened capture probes and triggered HCR, finally, a long nicked double-helix DNA structure was developed. Streptavidin is employed for signal amplification via binding with biotin labeled on the two hairpin DNA probes which take part in the HCR. The proposed biosensor presented a high sensitivity for determination of target miRNA down to 0.56 fM with a linear range from 1 fM to 100 pM and high specificity that discriminates target miRNA from mismatched miRNAs. The method was successfully applied to the determination of miRNA spiked into human total RNA samples. Therefore, the biosensor might have potential clinical application for miRNA detection in biomedical research and clinical diagnosis.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry
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    ABSTRACT: We have developed a modified magnetic bar carbon paste electrode in combination with 1-[2,4-Dihydroxy-5-(phenylazo-4-sulphonic acid)phenyl]-1-phenylmethanon (DPSPP) and reduced graphene oxide/Fe3O4 nanomaterials which was named MBCPE/DPSPP/RGO/Fe3O4NPs for the determination of hydrazine and hydroxylamine. The modified electrode was characterized by various techniques such as voltammetry, scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and the influence of different variables on the response of sensor was studied, too. The electrochemical behavior of hydrazine was investigated at MBCPE/DPSPP/RGO/Fe3O4NPs by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques in a phosphate buffer solution (pH 7.0). MBCPE/DPSPP/RGO/Fe3O4NPs as a novel electrochemical sensor exhibited catalytic activity toward the oxidation of hydrazine. The potential of hydrazine oxidation was shifted to more negative potentials, and its oxidation peak current increased on the modified electrode. The electrocatalytic current of hydrazine showed a good relationship in the concentration range of 120.0-600.0 nM, with a detection limit of 40.0 nM. In addition, simultaneous determination of hydrazine and hydroxylamine was studied at the proposed electrode. Voltammetric investigations showed a linear range of 10-155.0 μM with a detection limit of 3.4 μM for hydroxylamine. The proposed electrode was applied for determination of hydrazine and hydroxylamine in water samples, too.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry
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    ABSTRACT: Poly(3,4-ethylenedioxythiophene) (PEDOT) is a kind of conductive polymer. PEDOT doped with polystyrolsulfon acid (PSS) is often used as an interface material of microelectrode to improve the electrochemical characteristic. Due to unsymmetrical oxidation and reduction, the properties of PEDOT:PSS need to be improved furtherly. We use Sodium Dodecyl Sulfate (SDS) instead of PSS to dope PEDOT. Electrolytic deposition method is used to modify PEDOT:SDS on the surface of plane gold micro-electrodes fabricated with MEMS process. Compared with PEDOT:PSS, there are significant improvements in the electrochemical performance and anti-aging ability of the PEDOT:SDS modified microelectrode. The impedance of the electrode modified with PEDOT:SDS is nearly half of the impedance of PEDOT:PSS. As for the anti-aging ability, the electrical stability of SDS doped PEDOT is 3.5 times longer than the electrical stability of PSS.
    No preview · Article · Dec 2015 · Journal of electroanalytical chemistry