Adsorptive stripping voltammetry in trace analysis

Kalvoda, R.; Kopanica, M.

doi:10.1351/pac198961010097

Cited by 182 publications

(58 citation statements)

References 10 publications

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“…This technique is based on the principle that many organic compounds can undergo physico-chemical interactions that favor their adsorption in the solid state, thereby enabling determination of the species after its accumulation on the surface of the work electrode in contact with the solution. 38 Two steps were followed in this procedure: first, an electrical potential close to the E pa value registered by OXA was applied for a specific time interval. This step corresponds to the deposition of the analyte under magnetic stirring at 300 rpm, during which the target compound is electrochemically accumulated close to the electrical double layer on the surface of the work electrode.…”

Section: Adsorptive Stripping Voltammetry (Adsv)mentioning

confidence: 99%

Adsorptive Stripping Voltammetric Determination of Oxolinic Acid in Water Sample

Aleixo¹,

Okumura²,

Silva³

et al. 2018

J. Braz. Chem. Soc.

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One new methodology for analysis of the antimicrobial oxolinic acid (OXA) based on adsorptive stripping voltammetry (AdSV) in carbon paste electrode (CPE) was developed and applied in untreated pond water sample. Cyclic voltammetry (CV) indicated that an irreversible anodic process occurs in KOH solution as supporting electrolyte. Quantification of the antimicrobial was carried out by differential pulse adsorptive stripping voltammetry (DPAdSV) at potential of deposition (E D ) +1.05 V for 45 s to examine OXA adsorption on the surface of CPE. The limits of detection (LOD) and quantification (LOQ) of the method for OXA analysis were determined. The values of LOD were 0.0570 and 0.512 mg L -1 in absence of matrix and in the water sample, respectively, and the corresponding values of LOQ were 0.192 and 1.707 mg L -1 , respectively. The apparent recovery percentage for different concentrations of OXA in natural waters ranged between 98.4 and 109%.

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Section: Adsorptive Stripping Voltammetry (Adsv)mentioning

confidence: 99%

Adsorptive Stripping Voltammetric Determination of Oxolinic Acid in Water Sample

Aleixo¹,

Okumura²,

Silva³

et al. 2018

J. Braz. Chem. Soc.

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“…The accumulation of several organic compounds at carbon paste electrodes has been used in their determination by anodic stripping voltammetry (5,6). A typical example of application was reported by Wang and Freiha (7), who have performed the voltammetric determination of butylated hydroxyanisole, after a pre-concentration step in open circuit conditions.…”

Section: -12 -mentioning

confidence: 99%

Determination of Guaiacol at a Carbon Paste Electrode using Cathodic Stripping Voltammetry

Almeida¹,

Barros²,

Rodrigues³

1999

Port. Electrochim. Acta

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Guaiacol is an undesired compound in some natural products, mainly because of its aroma.In this work, the voltammetric determination of guaiacol by oxidation at a carbon paste electrode following a cathodic accumulation was first tried, with no sucess, because there was no accumulation of the compound. On the contrary, it was found that there is accumulation of a product formed after oxidation of guaiacol, probably a dimeric product, that can be determined by reduction. Using an accumulation time of 5 minutes and a potential at which guaiacol is being oxidized, a determination limit of 2 u.g/L was obtained by cathodic stripping voltammetry, a value about ten times lower than that obtained in the anodic determination. The method was applied to the determination of guaiacol in cork stoppers.

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“…An extensive survey on adsorptive stripping voltammetry and its applications has been published. 14 Adsorptive stripping voltammetric determinations of dinoseb at HMDE and MFE have been reported in the literature. 15,16 In modern voltammetry, different types of electrodes are applied for the determination of organic species in environmental samples as well as in biological samples.…”

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confidence: 99%

Differential Pulse Adsorptive Stripping Voltammetric Determination of Dinoseb and Dinoterb at a Modified Electrode

et al. 2003

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A sensitive adsorptive stripping voltammetric method for the determination of dinitrophenolic herbicides, dinoseb (DSB) and dinoterb (DTB) at a bare carbon paste electrode (CPE) and a clay modified carbon paste electrode (CMCPE) was developed. A systematic study of various experimental conditions, such as the pH, accumulation variables and composition of a modifier on the adsorptive stripping response, were examined by using differential pulse voltammetry. A significant improvement was observed in the sensitivity by using the present method with CMCPE. When CMCPE was used, a linear response was obtained over the concentration range 2 × 10 -10 to 3 × 10 -7 M and 6 × 10 -10 to 6 × 10 -7 M with lower detection limits of 1 × 10 -10 M and 5.4 × 10 -10 M for dinoseb and dinoterb, respectively, at an accumulation time of 100 s. The interference from other herbicides and ions on the stripping signals of both compounds was also evaluated. The described method was applied to estimate of the dinoseb and dinoterb in environmental samples.

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Adsorptive stripping voltammetry in trace analysis

Abstract: Abstract

Cited by 182 publications

References 10 publications

Adsorptive Stripping Voltammetric Determination of Oxolinic Acid in Water Sample

Adsorptive Stripping Voltammetric Determination of Oxolinic Acid in Water Sample

Determination of Guaiacol at a Carbon Paste Electrode using Cathodic Stripping Voltammetry

Differential Pulse Adsorptive Stripping Voltammetric Determination of Dinoseb and Dinoterb at a Modified Electrode

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