An adsorptive stripping voltammetry of nickel and cobalt at a solid lead electrode

Gęca, Iwona; Ochab, Mateusz; Korolczuk, Mieczysław

doi:10.1080/03067319.2016.1246661

Cited by 9 publications

(10 citation statements)

References 41 publications

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“…Solid metallic electrodes are an useful voltammetric tool as there is no need to add ions of a given metal to the supporting electrolyte in order to an electrochemical film plating during their application . A continuation of our research are investigations on miniaturization of the proposed sensors and construction of solid metal microelectrodes for which preparation a very small amounts of electrode material are necessary.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Determination of Folic Acid using a Solid Bismuth Microelectrode by Adsorptive Stripping Voltammetry

Gęca

Korolczuk

2019

Electroanalysis

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An adsorptive stripping voltammetric procedure of folic acid determination with the use of a new voltammetric sensor with a prolonged application‐solid bismuth microelectrode was described. The proposed microelectrode is characterized by more eco‐friendly properties as compared to in situ formed bismuth film electrodes due to the fact that bismuth ions are not needed as a component of supporting electrolyte for metal film plating. Furthermore the above mentioned fact simplifies and shortens a measurements procedure. Parameters affected folic acid determination were studied. After a procedure optimization the calibration graph was found to be linear in the range: 5×10−10 to 1×10−8 mol L−1 (accumulation time: 120 s). The obtained detection limit of folic acid determination for accumulation time of 120 s was 1.8×10−10 mol L−1. Possible interferences deriving from a presence of other organic and surface active compounds were studied. The analysis of pharmaceutical preparation was positively performed following the presented procedure.

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Section: Introductionmentioning

confidence: 99%

Sensitive Determination of Folic Acid using a Solid Bismuth Microelectrode by Adsorptive Stripping Voltammetry

Gęca

Korolczuk

2019

Electroanalysis

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“…A threeelectrode cell of a volume of 10 mL was used with solid lead electrode as a working electrode, Ag/AgCl (saturated with NaCl) as a reference electrode and Pt wire counter electrode. Solid lead electrode was prepared according to the way described previously [44]. Shortly, pure for analysis lead plate with dimensions of 0.1 mm (thickness) × 5 mm (length) × 2 mm (width) was placed in epoxy resin casing of a diameter of 8 mm and immersed with epoxy resin under vacuum.…”

Section: Instrumentationmentioning

confidence: 99%

“…Probable mechanisms of reduction of folic acid and compounds belong to flavonoids group were discussed in detail in [41][42][43]. For the first time a solid lead electrode, that demonstrated good capabilities towards nickel and cobalt [44], was used as a working electrode in the course of organic substance determination and obtained results are presented below. Proposed procedure was used for pharmaceuticals analysis with satisfactory results.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Simultaneous Determination of Rutin and Folic Acid with the Use of a Solid Lead Electrode by Means of Adsorptive Stripping Voltammetry

2019

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In this article a solid lead electrode (PbE) was utilized for the first time for determination of organic substances by means of adsorptive stripping voltammetry. A new procedure of simultaneous determination of rutin and folic acid was developed. Two well shaped and well separated reduction signals of rutin and folic acid were obtained with the use of PbE. The optimization of analytical procedure was presented. The calibration graphs for rutin and folic acid for an accumulation time of 120 s were linear in the ranges from 2×10−9 to 1×10−7 mol L−1 and from 2×10−9 to 5×10−8 mol L−1, respectively. The obtained detection limits for rutin and folic acid determination following accumulation time of 120 s were 7.9×10−10 and 8.4×10−10 mol L−1. Potential interference effects were investigated. The proposed procedure was used for analysis of pharmaceutical preparations with satisfactory results showing practical applications. The analytical parameters of the proposed procedure were compared with other voltammetric procedures of mentioned substances determination.

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“…In recent years, the literature has described many different working electrodes which use the formation of metallic films, among others lead film electrodes (PbFE). The formation of these electrodes can take place both ex situ and in situ (Bobrowski et al 2008;Bobrowski et al 2018;Deniz et al 2017;Gęca et al 2016;Grabarczyk and Adamczyk 2019;Korolczuk et al 2014;Tyszczuk-Rotko et al 2014). In the case of in situ, we add the salt of the lead from which the film is to be formed to the sample.…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotubes as a suitable material for electrochemical sensor used in voltammetric determinations of titanium

2023

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We report the use of carbon nanotubes as a material for the preparation of an electrochemical sensor that acts as a substrate for film metal electrodes used in stripping voltammetry. The sensor is based on a mixture of multiwall carbon nanotubes, glassy carbon spherical powder, and epoxy resin. The properly selected composition of the sensor made it possible to obtain a new substrate, competitive in relation to glassy carbon, for creating film metal electrodes. In this work, the proposed new sensor was used to determine the trace amounts of Ti(IV) on the lead film electrode. Measurements were carried out with in situ mode in an acetate buffer by adsorption stripping voltammetry with the use of cupferron as a complexing agent. Linear response to Ti(IV) ions in the concentration range of 7 × 10–10–7 × 10–8 mol L−1 and the limit of detection (LODs) 2.4 × 10–10 were obtained, respectively. These promising results revealed that a mixture of carbon nanotubes, epoxy resin, and spherical glassy carbon powder used for the determination of titanium ions on PbFE might represent an important addition to existing electrochemical sensor technologies. The proposed procedure was successfully used as a new and powerful analytical tool for determination of Ti(IV) in horsetail extracts.

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An adsorptive stripping voltammetry of nickel and cobalt at a solid lead electrode

Cited by 9 publications

References 41 publications

Sensitive Determination of Folic Acid using a Solid Bismuth Microelectrode by Adsorptive Stripping Voltammetry

Sensitive Determination of Folic Acid using a Solid Bismuth Microelectrode by Adsorptive Stripping Voltammetry

Sensitive Simultaneous Determination of Rutin and Folic Acid with the Use of a Solid Lead Electrode by Means of Adsorptive Stripping Voltammetry

Carbon nanotubes as a suitable material for electrochemical sensor used in voltammetric determinations of titanium

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