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Gimadutdinova L, Ziyatdinova G, Davletshin R. Voltammetric Sensor Based on the Combination of Tin and Cerium Dioxide Nanoparticles with Surfactants for Quantification of Sunset Yellow FCF. SENSORS (BASEL, SWITZERLAND) 2024; 24:930. [PMID: 38339646 PMCID: PMC10857103 DOI: 10.3390/s24030930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
Sunset Yellow FCF (SY FCF) is one of the widely used synthetic azo dyes in the food industry whose content has to be controlled for safety reasons. Electrochemical sensors are a promising tool for this type of task. A voltammetric sensor based on a combination of tin and cerium dioxide nanoparticles (SnO2-CeO2 NPs) with surfactants has been developed for SY FCF determination. The synergetic effect of both types of NPs has been confirmed. Surfactants of various natures (sodium lauryl sulfate (SLS), Brij® 35, and hexadecylpyridinium bromide (HDPB)) have been tested as dispersive media. The best effects, i.e., the highest oxidation currents of SY FCF, have been observed in the case of HDPB. The sensor demonstrates a 4.5-fold-higher electroactive surface area and a 38-fold-higher electron transfer rate compared to the bare glassy carbon electrode (GCE). The electrooxidation of SY FCF is an irreversible, two-electron, diffusion-driven process involving proton transfer. In differential pulse mode in Britton-Robinson buffer (BRB) pH 2.0, the sensor gives a linear response to SY FCF from 0.010 to 1.0 μM and from 1.0 to 100 μM with an 8.0 nM detection limit. The absence of an interferent effect from other typical food components and colorants has been shown. The sensor has been tested on soft drinks and validated with the standard chromatographic method.
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Affiliation(s)
- Liliya Gimadutdinova
- Analytical Chemistry Department, Kazan Federal University, Kremleyevskaya 18, Kazan 420008, Russia;
| | - Guzel Ziyatdinova
- Analytical Chemistry Department, Kazan Federal University, Kremleyevskaya 18, Kazan 420008, Russia;
| | - Rustam Davletshin
- Department of High Molecular and Organoelement Compounds, Kazan Federal University, Kremleyevskaya 18, Kazan 420008, Russia;
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Electrochemical Characterization of the Antioxidant Properties of Medicinal Plants and Products: A Review. Molecules 2023; 28:molecules28052308. [PMID: 36903553 PMCID: PMC10004803 DOI: 10.3390/molecules28052308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/19/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Medicinal plants are an important source of bioactive compounds with a wide spectrum of practically useful properties. Various types of antioxidants synthesized in plants are the reasons for their application in medicine, phytotherapy, and aromatherapy. Therefore, reliable, simple, cost-effective, eco-friendly, and rapid methods for the evaluation of antioxidant properties of medicinal plants and products on their basis are required. Electrochemical methods based on electron transfer reactions are promising tools to solve this problem. Total antioxidant parameters and individual antioxidant quantification can be achieved using suitable electrochemical techniques. The analytical capabilities of constant-current coulometry, potentiometry, various types of voltammetry, and chrono methods in the evaluation of total antioxidant parameters of medicinal plants and plant-derived products are presented. The advantages and limitations of methods in comparison to each other and traditional spectroscopic methods are discussed. The possibility to use electrochemical detection of the antioxidants via reactions with oxidants or radicals (N- and O-centered) in solution, with stable radicals immobilized on the electrode surface, via oxidation of antioxidants on a suitable electrode, allows the study of various mechanisms of antioxidant actions occurring in living systems. Attention is also paid to the individual or simultaneous electrochemical determination of antioxidants in medicinal plants using chemically modified electrodes.
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Gimadutdinova L, Ziyatdinova G, Davletshin R. Selective Voltammetric Sensor for the Simultaneous Quantification of Tartrazine and Brilliant Blue FCF. SENSORS (BASEL, SWITZERLAND) 2023; 23:1094. [PMID: 36772133 PMCID: PMC9920251 DOI: 10.3390/s23031094] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Tartrazine and brilliant blue FCF are synthetic dyes used in the food, cosmetic and pharmaceutical industries. The individual and/or simultaneous control of their concentrations is required due to dose-dependent negative health effects. Therefore, the paper presents experimental results related to the development of a sensing platform for the electrochemical detection of tartrazine and brilliant blue FCF based on a glassy carbon electrode (GCE) modified with MnO2 nanorods, using anodic differential pulse voltammetry. Homogeneous and stable suspensions of MnO2 nanorods have been obtained involving cetylpyridinium bromide solution as a cationic surfactant. The MnO2 nanorods-modified electrode showed a 7.9-fold increase in the electroactive surface area and a 72-fold decrease in the electron transfer resistance. The developed sensor allowed the simultaneous quantification of dyes for two linear domains: in the ranges of 0.10-2.5 and 2.5-15 μM for tartrazine and 0.25-2.5 and 2.5-15 μM for brilliant blue FCF with detection limits of 43 and 41 nM, respectively. High selectivity of the sensor response in the presence of typical interference agents (inorganic ions, saccharides, ascorbic and sorbic acids), other food dyes (riboflavin, indigo carmine, and sunset yellow), and vanillin has been achieved. The sensor has been tested by analyzing soft and isotonic sports drinks and the determined concentrations were close to those obtained involving the chromatography technique.
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Affiliation(s)
- Liliya Gimadutdinova
- Analytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, Kazan 420008, Russia
| | - Guzel Ziyatdinova
- Analytical Chemistry Department, Kazan Federal University, Kremleyevskaya, 18, Kazan 420008, Russia
| | - Rustam Davletshin
- Department of High Molecular and Organoelement Compounds, Kazan Federal University, Kremleyevskaya, 18, Kazan 420008, Russia
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Kavieva L, Ziyatdinova G. Sensitive voltammetric quantification of carminic acid in candies using selenium dioxide nanoparticles based electrode. Food Chem 2022; 386:132851. [PMID: 35366626 DOI: 10.1016/j.foodchem.2022.132851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 03/17/2022] [Accepted: 03/27/2022] [Indexed: 11/27/2022]
Abstract
Carminic acid is a food colorant which concentration has to be controlled due to the possible negative health effects. Sensitive voltammetric method is developed for carminic acid determination using electrode modified with SeO2 nanoparticles (SeO2 NPs) and hexadecyltriphenylphosphonium bromide (HDTPPB) acting as dispersive agent for nanoparticles and electrode surface co-modifier. SeO2 NPs of 37-45 nm are uniformly distributed at the electrode increasing its electroactive area (41 ± 2 vs. 8.9 ± 0.2 mm2 for bare glassy carbon electrode (GCE)). Electrochemical impedance spectroscopy data confirm an 18.3-fold decrease of charge transfer resistance compared to GCE (12.7 ± 0.3 vs. 232 ± 7 kΩ, respectively). In differential pulse mode, the linear dynamic ranges of carminic acid are 0.010-2.5 and 2.5-10 μmol L-1 with a detection limit of 3.4 nmol L-1. The method is successfully employed in candies and lozenges for sore throat treatment. The approach is simple, reliable, and can be used as an alternative to chromatography in routine analysis.
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Affiliation(s)
- Liya Kavieva
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyevskaya 18, 420008 Kazan, Russian Federation
| | - Guzel Ziyatdinova
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyevskaya 18, 420008 Kazan, Russian Federation.
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Ziyatdinova GK, Budnikov HC. Voltammetric Determination of Tartrazine on an Electrode Modified with Cerium Dioxide Nanoparticles and Cetyltriphenylphosphonium Bromide. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s106193482206017x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Voltammetric Sensor Based on SeO2 Nanoparticles and Surfactants for Indigo Carmine Determination. SENSORS 2022; 22:s22093224. [PMID: 35590915 PMCID: PMC9103650 DOI: 10.3390/s22093224] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/06/2022] [Accepted: 04/20/2022] [Indexed: 02/01/2023]
Abstract
Indigo carmine is a widely used colorant in the food and pharmaceutical industry a high concentration of which can lead to a wide range of negative effects on human health. Therefore, colorant contents have to be strictly controlled. SeO2-nanoparticle-modified glassy carbon electrodes (GCE) have been developed as a voltammetric sensor for indigo carmine. Various types and concentrations of surfactants have been used as reagents for the stabilization of SeO2 nanoparticle dispersions and as electrode surface co-modifiers. An amount of 1.0 mM cationic cetylpyridinium bromide (CPB) provides the best response of the indigo carmine on the modified electrode. The electrodes were characterized by cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy (EIS). SeO2 nanoparticle–CPB-modified electrodes show 4.2-fold higher electroactive area vs. GCE as well as a dramatic 5043-fold decrease in the electron transfer resistance indicating effectivity of the modifier developed. The surface-controlled electrooxidation of indigo carmine proceeds irreversibly (αa = 0.46) with the participation of two electrons and two protons. A linear dynamic range of 0.025–1.0 and 1.0–10 µM of indigo carmine were obtained with the detection and quantification limits of 4.3 and 14.3 nM, respectively. The practical applicability of the sensor was successfully shown on the pharmaceutical dosage forms.
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Muthukutty B, Ganesamurthi J, Chen TW, Chen SM, Yu J, Liu X. A novel high-performance electrocatalytic determination platform for voltammetric sensing of eugenol in acidic media using pyrochlore structured lanthanum stannate nanoparticles. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.10.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Ziyatdinova G, Gimadutdinova L. Cerium(IV) and Iron(III) Oxides Nanoparticles Based Voltammetric Sensor for the Sensitive and Selective Determination of Lipoic Acid. SENSORS (BASEL, SWITZERLAND) 2021; 21:7639. [PMID: 34833711 PMCID: PMC8621773 DOI: 10.3390/s21227639] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/13/2021] [Accepted: 11/14/2021] [Indexed: 01/25/2023]
Abstract
A novel voltammetric sensor based on CeO2·Fe2O3 nanoparticles (NPs) has been developed for the determination of lipoic acid, playing an essential role in aerobic metabolism in the living organism. Sensor surface modification provides a 5.6-fold increase of the lipoic acid oxidation currents and a 20 mV anodic shift of the oxidation potential. The best voltammetric parameters have been obtained for the 0.5 mg mL-1 dispersion of CeO2·Fe2O3 NPs. Scanning electron microscopy (SEM) confirms the presence of spherical NPs of 25-60 nm, and their aggregates evenly distributed on the electrode surface and formed porous coverage. This leads to the 4.4-fold increase of the effective surface area vs. bare glassy carbon electrode (GCE). The sensor shows a significantly higher electron transfer rate. Electrooxidation of lipoic acid on CeO2·Fe2O3 NPs modified GCE is an irreversible diffusion-controlled pH-independent process occurring with the participation of two electrons. The sensor gives a linear response to lipoic acid in the ranges of 0.075-7.5 and 7.5-100 μM with the detection limit of 0.053 μM. The sensor is selective towards lipoic acid in the presence of inorganic ions, ascorbic acid, saccharides, and other S-containing compounds. The sensor developed has been tested on the pharmaceutical dosage forms of lipoic acid.
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Affiliation(s)
- Guzel Ziyatdinova
- Department of Analytical Chemistry, Kazan Federal University, Kremleyevskaya 18, 420008 Kazan, Russia
| | - Liliya Gimadutdinova
- Department of Analytical Chemistry, Kazan Federal University, Kremleyevskaya 18, 420008 Kazan, Russia
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Ziyatdinova G, Yakupova E, Davletshin R. Voltammetric Determination of Hesperidin on the Electrode Modified with SnO
2
Nanoparticles and Surfactants. ELECTROANAL 2021. [DOI: 10.1002/elan.202100405] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Guzel Ziyatdinova
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry Kazan Federal University Kremlyevskaya, 18 Kazan 420008 Russian Federation
| | - Elvira Yakupova
- Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry Kazan Federal University Kremlyevskaya, 18 Kazan 420008 Russian Federation
| | - Rustam Davletshin
- Department of High Molecular and Organoelement Compounds, A.M. Butlerov Institute of Chemistry Kazan Federal University Kremlyevskaya, 18 Kazan 420008 Russian Federation
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Housaindokht MR, Janati‐Fard F, Ashraf N. Recent advances in applications of surfactant‐based voltammetric sensors. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mohammad Reza Housaindokht
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
- Research and Technology Center of Biomolecules, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
| | - Fatemeh Janati‐Fard
- Research and Technology Center of Biomolecules, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
| | - Narges Ashraf
- Department of Chemistry, Faculty of Sciences Ferdowsi University of Mashhad Mashhad Iran
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Shi Z, Xia L, Li G, Hu Y. Platinum nanoparticles-embedded raspberry-liked SiO 2 for the simultaneous electrochemical determination of eugenol and methyleugenol. Mikrochim Acta 2021; 188:241. [PMID: 34212233 DOI: 10.1007/s00604-021-04892-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/11/2021] [Indexed: 11/29/2022]
Abstract
Based on platinum nanoparticle-embedded raspberry-liked SiO2, a sensitive and selective electrochemical sensor was developed for simultaneous determination of eugenol (EU) and methyleugenol (MEU). Raspberry-liked SiO2 (RL-SiO2) was characterized with open pores on the surface, which can be used as a path for utilizing the inner space fully. So, platinum nanoparticles (Pt NPs) could be embedded in the inner and outer surface of RL-SiO2. As a carrier, RL-SiO2 not only avoided the agglomeration of the Pt NPs but also improved the catalytic performance. Therefore, the prepared Pt NPs@RL-SiO2/GCE exhibited excellent electrocatalytic activity for simultaneous determination of EU and MEU; the linearity ranges were 0.50 ~ 60 μmol/L for EU at a working potential of 0.65 V (vs. saturated calomel electrode) and 0.50 ~ 50 μmol/L for MEU at a working potential of 1.10 V; the detection limits were 0.12 μmol/L and 0.16 μmol/L (S/N=3); and the relative standard deviations (RSDs) were 3.2% and 4.5%, respectively. In addition, Pt NPs@RL-SiO2/GCE was successfully applied to the analysis of fish samples; the obtained recoveries were between 92.0 and 107%. Notably, the results conducted on samples were highly consistent with those obtained from high-performance liquid chromatography. It can be concluded that the study provided a simple method for simultaneous electrochemical determination of EU and MEU in fish samples. Schematic illustration of the preparation of RL-SiO2@Pt NPs/GCE for simultaneous determination of eugenol and methyleugenol in fish samples.
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Affiliation(s)
- Zhaoxia Shi
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Ling Xia
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Yufei Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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Fadillah G, Wicaksono WP, Fatimah I, Saleh TA. A sensitive electrochemical sensor based on functionalized graphene oxide/SnO2 for the determination of eugenol. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105353] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Umar A, Almas T, Ibrahim AA, Kumar R, AlAssiri M, Baskoutas S, Akhtar MS. An efficient chemical sensor based on CeO2 nanoparticles for the detection of acetylacetone chemical. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114089] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Murtada K, Moreno V. Nanomaterials-based electrochemical sensors for the detection of aroma compounds - towards analytical approach. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113988] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Ziyatdinova G, Ziganshina E, Shamsevalieva A, Budnikov H. Voltammetric determination of capsaicin using CeO2-surfactant/SWNT-modified electrode. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.12.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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Ziyatdinova GK, Zakharova SP, Ziganshina ER, Budnikov HC. Voltammetric Determination of Flavonoids in Medicinal Plant Materials Using Electrodes Modified by Cerium Dioxide Nanoparticles and Surfactants. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s106193481908015x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Ziyatdinova G, Antonova T, Vorobev V, Osin Y, Budnikov H. Selective voltammetric determination of α-lipoic acid on the electrode modified with SnO2 nanoparticles and cetyltriphenylphosphonium bromide. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-018-2341-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Ziyatdinova GK, Budnikov HC. Spice Antioxidants as Objects of Analytical Chemistry. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s106193481810012x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kowalcze M, Wyrwa J, Dziubaniuk M, Jakubowska M. Voltammetric Determination of Anethole on La 2O 3/CPE and BDDE. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2018; 2018:2158407. [PMID: 29675284 PMCID: PMC5838461 DOI: 10.1155/2018/2158407] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/03/2017] [Accepted: 11/09/2017] [Indexed: 06/08/2023]
Abstract
In this work, DPV determination of anethole was presented using various carbon, two-diameter (1.5 and 3 mm) electrodes, that is, BDD, GC, CP, and CP doped by La2O3 and CeO2 nanoparticles. La2O3/CPE to our best knowledge was proposed first time. Cyclic voltammograms confirmed totally irreversible electrode electrooxidation process, controlled by diffusion, in which two electrons take part. The most satisfactory sensitivity 0.885 ± 0.016 µA/mg L-1 in 0.1 mol L-1 acetate buffer was obtained for La2O3/CPE with the correlation coefficient r of 0.9993, while for BDDE it was 0.135 ± 0.003 µA/mg L-1 with r of 0.9990. The lowest detection limit of 0.004 mg L-1 was reached on La2O3/CPE (3 mm), what may be compared with the most sensitive conjugate methods, but in the proposed approach, no sample preparation and analyte separation was needed. Anethole was successfully determined in specially prepared ethanol extracts of herbal mixtures of various compositions, which imitated real products. The proposed procedure was verified in analysis of commercial products, that is, anise essential oil, which contains a large concentration of anethole, and in alcohol drinks like Metaxa, Ouzo, and Rakija, in which the considered analyte occurs on trace levels. Structure and properties of the considered nanopowders and graphite pastes were investigated by EDX, SEM, and EIS.
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Affiliation(s)
- Mateusz Kowalcze
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Kraków, Poland
| | - Jan Wyrwa
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Kraków, Poland
| | - Małgorzata Dziubaniuk
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Kraków, Poland
| | - Małgorzata Jakubowska
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Kraków, Poland
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20
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Novel approach for the voltammetric evaluation of antioxidant activity using DPPH -modified electrode. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.155] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Yildiz G, Aydogmus Z, Cinar ME, Senkal F, Ozturk T. Electrochemical oxidation mechanism of eugenol on graphene modified carbon paste electrode and its analytical application to pharmaceutical analysis. Talanta 2017; 173:1-8. [PMID: 28602182 DOI: 10.1016/j.talanta.2017.05.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/15/2017] [Accepted: 05/20/2017] [Indexed: 01/29/2023]
Abstract
Electrochemical properties of eugenol were investigated on a graphene modified carbon paste electrode (CPE) by using voltammetric methods, which exhibited a well-defined irreversible peak at about 0.7V vs Ag/AgCl, NaCl (3M) in Britton-Robinson buffer at pH 2.0. Mechanism of the electrochemical reaction of eugenol was studied by performing density functional theory (DFT) computations and mass spectroscopic analysis. (CPCM:water)-wB97XD/aug-cc-PVTZ//(CPCM:water)-wB97XD/6-31G(d) level calculations predicted that the formation of product P2, possessing a para-quinoid structure, is preferred rather than the product P1, suggested in the literature, having an ortho-quinoid system. Determination of eugenol in a pharmaceutical sample was realized in the light of the electrochemical findings, and a validated voltammetric method for quantitative analysis of eugenol in a pharmaceutical formulation was proposed. The differential pulse voltammogram (DPV) peak currents were found to be linear in the concentration range of 1.0 × 10-7 to 1.7 × 10-5M. The limit of detection (LOD) and the limit of quantification (LOQ) were obtained to be 7.0 × 10-9 and 2.3 × 10-8, respectively.
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Affiliation(s)
- Gulcemal Yildiz
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
| | - Zeynep Aydogmus
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Beyazıt, 34116 Istanbul, Turkey
| | - M Emin Cinar
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey; Department Chemie-Biologie, OC1, Universität Siegen, Adolf-Reichwein-Str., 57068 Siegen, Germany
| | - Filiz Senkal
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Turan Ozturk
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey; Chemistry Group Laboratories, TUBITAK UME, PO Box 54, 41470 Gebze, Kocaeli, Turkey.
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