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Cloud point extraction coupled with ultrasonic-assisted back-extraction for the determination of metalaxyl, fludioxonil and fenarimol in fruits by gas chromatography with flame ionization detection. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02431-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Vajdle O, Mutić S, Lazić S, Kónya Z, Guzsvány V, Anojčić J. Rapid direct cathodic voltammetric determination of insecticide flonicamid by renewable silver-amalgam film electrode. INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 2022. [DOI: 10.1080/03067319.2022.2054706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Olga Vajdle
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Sanja Mutić
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Sanja Lazić
- Department of Phytomedicine and Environmental Protection, Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Szeged, Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Szeged, Hungary
| | - Valéria Guzsvány
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Jasmina Anojčić
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
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Rudnicki K, Landová P, Wrońska M, Domagała S, Čáslavský J, Vávrová M, Skrzypek S. Quantitative determination of the veterinary drug monensin in horse feed samples by square wave voltammetry (SWV) and direct infusion electrospray ionization tandem mass spectrometry (DI–ESI–MS/MS). Microchem J 2018. [DOI: 10.1016/j.microc.2018.05.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Smajdor J, Piech R, Paczosa-Bator B. Highly sensitive voltammetric determination of dexamethasone on amalgam film electrode. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Voltammetric determination of thujone by a renewable silver amalgam film electrode in herbal matrices and thuja oil. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.09.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sipa K, Brycht M, Leniart A, Urbaniak P, Nosal-Wiercińska A, Pałecz B, Skrzypek S. β-Cyclodextrins incorporated multi-walled carbon nanotubes modified electrode for the voltammetric determination of the pesticide dichlorophen. Talanta 2017; 176:625-634. [PMID: 28917800 DOI: 10.1016/j.talanta.2017.07.084] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/25/2017] [Accepted: 07/27/2017] [Indexed: 01/09/2023]
Abstract
In this work, a glassy carbon electrode modified with β-cyclodextrins and multi-walled carbon nanotubes (β-CDs/MWCNTs/GCE) was constructed and applied for the square-wave adsorptive stripping voltammetric (SWAdSV) determination of the pesticide dichlorophen (Dcp). For the first time, this compound was electrochemically investigated. The voltammetric measurements were conducted in phosphate buffer (PBS) at pH 6.5 as a supporting electrolyte, and SWAdSV technique parameters were optimized. A linear calibration curve in the wide concentration range from 5.0 × 10-8molL-1 to 2.9 × 10-6molL-1 was obtained. Excellent analytical performance in terms of limit of detection (LOD) of 1.4 × 10-8molL-1 was achieved. The utility of the proposed method was verified by the quantitative analysis of Dcp in Pilica River water samples with satisfactory results. The characterization of modified electrodes was conducted by means of atomic force microscopy (AFM), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV). Moreover, in this work, the dissociation constants (pKa) of Dcp using potentiometric pH titration were estimated. The stoichiometry of the Dcp-β-CDs inclusion complex formed in solution was determined by proton nuclear magnetic resonance (1H NMR) spectroscopy, and a binding constant (β2) was estimated from NMR titration studies.
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Affiliation(s)
- Karolina Sipa
- University of Lodz, Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Tamka 12, 91-403 Lodz, Poland
| | - Mariola Brycht
- University of Lodz, Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Tamka 12, 91-403 Lodz, Poland
| | - Andrzej Leniart
- University of Lodz, Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Tamka 12, 91-403 Lodz, Poland
| | - Paweł Urbaniak
- University of Lodz, Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Tamka 12, 91-403 Lodz, Poland
| | - Agnieszka Nosal-Wiercińska
- Maria Skłodowska-Curie University, Faculty of Chemistry, M. Skłodowska-Curie sq. 3, 20-031 Lublin, Poland
| | - Bartłomiej Pałecz
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Sławomira Skrzypek
- University of Lodz, Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, Tamka 12, 91-403 Lodz, Poland.
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Voltammetric determination of aluminum-Alizarin S complex by renewable silver amalgam electrode in river and waste waters. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.04.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Atukuri J, Fawole OA, Opara UL. Effect of exogenous fludioxonil postharvest treatment on physiological response, physico-chemical, textural, phytochemical and sensory characteristics of pomegranate fruit. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-017-9485-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Voltammetric and corrosion studies of the ionophoric antibiotic–salinomycin and its determination in a soil extract. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.10.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Brycht M, Nosal-Wiercińska A, Sipa K, Rudnicki K, Skrzypek S. Electrochemical determination of closantel in the commercial formulation by square-wave adsorptive stripping voltammetry. MONATSHEFTE FUR CHEMIE 2016; 148:463-472. [PMID: 28344363 PMCID: PMC5346127 DOI: 10.1007/s00706-016-1862-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/17/2016] [Indexed: 11/30/2022]
Abstract
ABSTRACT In this paper, the square-wave adsorptive stripping voltammetric (SWAdSV) determination of the veterinary drug closantel using a renewable silver amalgam film electrode (Hg(Ag)FE) is presented. As observed in SWAdSV, closantel provided one well-shaped reduction peak suitable for analytical purposes at potential ca. -1.4 V in the Britton-Robinson (B-R) buffer at pH 7.0. At optimal conditions, the SWAdSV response of Hg(Ag)FE for determining closantel was linear over two concentration ranges of 5.0 × 10-8 to 2.0 × 10-7 mol dm-3 and 2.0 × 10-7 to 1.2 × 10-6 mol dm-3 with a detection limit of 1.1 × 10-8 mol dm-3. In addition, a relevance of the developed SWAdSV method was successfully verified by the quantitative analysis of closantel in the commercial formulation Closamectin Pour-On with satisfactory results (RSD = 5.8%, recovery = 101.8%). The results showed that the developed procedure can be adequate for screening purposes. Also, the electrochemical behavior of closantel was characterized by cyclic voltammetry, and it was found that closantel exhibited a quasi-reversible behavior with cathodic peak on the forward scan at ca. -1.4 V and anodic peak on the reverse scan at ca. -1.35 V vs. Ag/AgCl in B-R buffer, pH 7.0. As the obtained results showed that the electrode mechanism of closantel is controlled by the adsorption, the effect of adsorption was studied using the electrochemical impedance spectroscopy technique. GRAPHICAL ABSTRACT
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Affiliation(s)
- Mariola Brycht
- Department of Inorganic and Analytical Chemistry Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
| | - Agnieszka Nosal-Wiercińska
- Department of Analytical Chemistry and Instrumental Analysis Faculty of Chemistry, Maria Skłodowska-Curie University, M. Skłodowska-Curie sq. 3, 20-031 Lublin, Poland
| | - Karolina Sipa
- Department of Inorganic and Analytical Chemistry Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
| | - Konrad Rudnicki
- Department of Inorganic and Analytical Chemistry Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
| | - Sławomira Skrzypek
- Department of Inorganic and Analytical Chemistry Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
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New sensitive square-wave adsorptive stripping voltammetric determination of pesticide chlornitrofen, and an evaluation of its corrosivity towards steel agricultural equipment. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.07.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Renewable silver amalgam film electrodes in electrochemical stripping analysis—a review. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3275-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Square-wave voltammetric determination of fungicide fenfuram in real samples on bare boron-doped diamond electrode, and its corrosion properties on stainless steels used to produce agricultural tools. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.069] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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