Square‐wave Amplitude Effect in Cathodic and Anodic Stripping Square‐wave Voltammetry

Guziejewski, Dariusz

doi:10.1002/elan.201800425

Cited by 10 publications

(6 citation statements)

References 33 publications

(38 reference statements)

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“…Square-wave voltammetry (SWV), as a special form of the popular differential pulse voltammetry, , is one of the most advanced members in the family of pulse voltammetric techniques, − being primarily designed to provide high sensitivity and speed of the analytical measurement. , The popularity of the technique has been permanently progressing since the seminal work of Ramaley and Krause, contributions of Osteryoungs and O’Dea, Lovric et al., − and others. − Methodological development and application of the technique have been reviewed recently. , In the past 2 decades the application for studying mechanism − and kinetics , of electrochemical processes has been progressively increasing revealing the versatility and sophistication of the technique.…”

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confidence: 99%

Differential Square-Wave Voltammetry

et al. 2019

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A new voltammetric technique designed as a hybrid between differential pulse and square-wave voltammetry is proposed for the purpose of unifying the advantages of both techniques, i.e., the ability to provide mechanistic information, studying electrode kinetics of both sluggish and very fast electrode reactions, and the ability to suppress effectively residual background current. Voltammetric modulation of the hybrid technique consists of a staircase potential combined with square-wave potential modulation superimposed at the end of each potential step. By measuring the current at the end of each potential step and pulse, differential forward and backward voltammetric components can be composed, which is a unique ability of the hybrid technique. In addition, by analogy to square-wave voltammetry, a net differential component can be contracted with improved analytical performances compared to square-wave voltammetry. The proposed technique opens a new avenue for an advanced analysis of electrochemical processes and analytical application.

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confidence: 99%

Differential Square-Wave Voltammetry

et al. 2019

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“…Larger amplitudes have offered a better peak current, but as amplitudes become larger, the background current increases, the peak appears broader and shifts from its proper location it. Thus, if inappropriate amplitudes are used, it can lead to inaccurate results [58]. Figure 7 represents SWV of 19.5 µM H 2 O 2 in 0.5 M NaOH with changing amplitude from (a = 0.02, b = 0.05 to c = 0.07 V) at (a) p1,5-DAN/CPE and (b) PdNPs/p1,5-DAN/CPE.…”

Section: Effect Of the Amplitude On The Redox Behaviour Of H 2 Omentioning

confidence: 99%

Voltammetric determination of hydrogen peroxide at decorated palladium nanoparticles/poly 1,5-diaminonaphthalene modified carbon-paste electrode

Khalifa,

Abo Oura,

Hathoot

et al. 2024

R. Soc. Open Sci.

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In this work, palladium nanoparticles (PdNPs)/p1,5-DAN/ carbon paste electrode (CPE) and p1,5-DAN/CPE sensors have been developed for determination of hydrogen peroxide. Both sensors showed a highly sensitive and selective electrochemical behaviour, which were derived from a large specific area of poly 1,5 DAN and super excellent electroconductibility of PdNPs. PdNPs/p1,5-DAN/CPE exhibited excellent performance over p1,5-DAN/CPE. Thus, it was used for detecting hydrogen peroxide (H 2 O 2 ) with linear ranges of 0.1 to 250 µM and 0.2 to 300 µM as well as detection limits ( S/N = 3 ) of 1.0 and 5.0 nM for square wave voltammetry (SWV) and cyclic voltammetry (C.V) techniques, respectively. The modified CPE has good reproducibility, adequate catalytic activity, simple synthesis and stability of peak response during H 2 O 2 oxidation on long run that exceeds many probes. Both reproducibility and stability for H 2 O 2 detection are attributable to the PdNPs immobilized on the surface of p1,5-DAN/CPE. The modified CPE was used for determining H 2 O 2 in real specimens with good stability, sensitivity, and reproducibility.

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“…The effect of SWV parameters was experimentally studied. The influence of SWV conditions was presented in literature and demonstrates that SWV parameters can affect the electrode response [25][26][27]. SWVs were recorded for a solution containing 1 mM of RESV using the selected conditions.…”

Section: Influence Of Swv Parametersmentioning

confidence: 99%

Voltammetric determination of resveratrol using poly(l-phenylalanine)-modified gold electrode

Güngör

Hassine

Burç

et al. 2020

Maced. J. Chem. Chem. Eng.

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In this study, we investigated the electrochemical modification of a gold electrode using poly(L-phenylalanine) and its applicability for the quantification of resveratrol (RESV). The gold electrode was modified with L-phenylalanine employing cyclic voltammetry (CV) in aqueous solution. The detection of RESV with the modified electrode was investigated by square wave voltammetry (SWV) in a phosphate buffer solution (PBS) (pH = 1.2). The analytical calibration curve for RESV showed a linear response with concentration in the oxidation peak current range from 50 to 1000 µM, with a limit of detection (LOD) of 35.16 µM and limit of quantitation (LOQ) of 105.5 µM. The application of the prepared electrochemical sensor was carried out with a standard addition method in red wine samples.

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Square‐wave Amplitude Effect in Cathodic and Anodic Stripping Square‐wave Voltammetry

Cited by 10 publications

References 33 publications

Differential Square-Wave Voltammetry

Differential Square-Wave Voltammetry

Voltammetric determination of hydrogen peroxide at decorated palladium nanoparticles/poly 1,5-diaminonaphthalene modified carbon-paste electrode

Voltammetric determination of resveratrol using poly(l-phenylalanine)-modified gold electrode

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