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Pimalai D, Putnin T, Bamrungsap S. A highly sensitive electrochemical sensor based on poly(3-aminobenzoic acid)/graphene oxide-gold nanoparticles modified screen printed carbon electrode for paraquat detection. J Environ Sci (China) 2025; 148:139-150. [PMID: 39095153 DOI: 10.1016/j.jes.2023.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/03/2023] [Accepted: 10/06/2023] [Indexed: 08/04/2024]
Abstract
Herein, a modified screen printed carbon electrode (SPCE) based on a composite material, graphene oxide-gold nanoparticles (GO-AuNPs), and poly(3-aminobenzoic acid)(P3ABA) for the detection of paraquat (PQ) is introduced. The modified electrode was fabricated by drop casting of the GO-AuNPs, followed by electropolymerization of 3-aminobenzoic acid to achieve SPCE/GO-AuNPs/P3ABA. The morphology and microstructural characteristics of the modified electrodes were revealed by scanning electron microscopy (SEM) for each step of modification. The composite GO-AuNPs can provide high surface area and enhance electroconductivity of the electrode. In addition, the presence of negatively charged P3ABA notably improved PQ adsorption and electron transfer rate, which stimulate redox reaction on the modified electrode, thus improving the sensitivity of PQ analysis. The SPCE/GO-AuNPs/P3ABA offered a wide linear range of PQ determination (10-9-10-4 mol/L) and low limit of detection (LOD) of 0.45 × 10-9 mol/L or 0.116 µg/L, which is far below international safety regulations. The modified electrode showed minimum interference effect with percent recovery ranging from 96.5% to 116.1% after addition of other herbicides, pesticides, metal ions, and additives. The stability of the SPCE/GO-AuNPs/P3ABA was evaluated, and the results indicated negligible changes in the detection signal over 9 weeks. Moreover, this modified electrode was successfully implemented for PQ analysis in both natural and tapped water with high accuracy.
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Affiliation(s)
- Dechnarong Pimalai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Thitirat Putnin
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Suwussa Bamrungsap
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand.
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2
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Khanaaekwichaporn P, Thammakhet-Buranachai C, Sangsudcha W, Thavarungkul P, Kanatharana P, Jeerapan I. A wearable electrode based on copper nanoparticles for rapid determination of paraquat. Mikrochim Acta 2023; 190:286. [PMID: 37417989 DOI: 10.1007/s00604-023-05861-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 06/05/2023] [Indexed: 07/08/2023]
Abstract
The application of copper-based nanoparticles synthesized via green synthesis and their integration with a wearable electrode is reported for designing a flexible catalytic electrode on a glove for onsite electroanalysis of paraquat. A copper precursor and an orange extract from Citrus reticulata are used to synthesize an economical electrocatalytic material for supporting the selective and sensitive detection of paraquat. The electrode yields multidimensional fingerprints due to two redox couples in a square wave voltammogram, corresponding to the presence of paraquat. The developed lab-on-a-finger sensor provides the fast electroanalysis of paraquat within 10 s, covering a wide range from 0.50 to 1000 µM, with a low detection limit down to 0.31 µM and high selectivity. It is also possible to use this sensor at a fast scan rate as high as 6 V s-1 (< 0.5 s for a scan). This wearable glove sensor allows the user to directly touch and analyze samples, such as surfaces of vegetables and fruits, to screen the contamination. It is envisioned that these glove-embedded sensors can be applied to the on-site analysis of food contamination and environments.
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Affiliation(s)
- Phennapa Khanaaekwichaporn
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Chongdee Thammakhet-Buranachai
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Warawut Sangsudcha
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Panote Thavarungkul
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Proespichaya Kanatharana
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Itthipon Jeerapan
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
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3
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Ganesh PS, Teradale AB, Kim SY, Ko HU, Ebenso EE. Electrochemical sensing of anti-inflammatory drug mesalazine in pharmaceutical samples at polymerized-congo red modified carbon paste electrode. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Niu Z, Liu Y, Li X, Yan K, Chen H. Electrochemical sensor for ultrasensitive detection of paraquat based on metal-organic frameworks and para-sulfonatocalix[4]arene-AuNPs composite. CHEMOSPHERE 2022; 307:135570. [PMID: 35803381 DOI: 10.1016/j.chemosphere.2022.135570] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
The widespread occurrence of pesticides in surface water, groundwater, soil, and food has received increasing attention towards environmental safety. Paraquat (PQ) is world widely used as a rapid sterilant herbicide and is highly toxic to humans. A simple, rapid, sensitive, and on-site detection method for the water environment to detection of PQ is urgently required. Here, we prepared a zeolite imidazole skeleton-8 (ZIF-8) and para-sulfonylcalix[4]arene (pSC4) coated gold nanoparticles composite (pSC4-AuNPs@ZIF-8) by one-step method. An electrochemical biosensor assay for PQ was established based on pSC4-AuNPs@ZIF-8 modified glassy carbon electrode through host-guest recognition of PQ and pSC4. Under the optimal conditions, recoveries of targets determination results were 92.7%-103% (n = 3), respectively. The quantity PQ detection limit was found to be 0.49 pM. Therefore, the signal amplification strategy based on pSC4-AuNPs@ZIF-8 has potential value in detecting trace pollutants in the water environment.
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Affiliation(s)
- Zhijuan Niu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Yawen Liu
- School of Medicine, Shanghai University, Shanghai, 200444, PR China; School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Xin Li
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Kai Yan
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, PR China.
| | - Hongxia Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
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Li M, Wang X, Zhu Y, Jia X, Zhang S, Wang H, Li Y, Hu G. Fe2O3-decorated boron/nitrogen-co-doped carbon nanosheets as an electrochemical sensing platform for ultrasensitive determination of paraquat in natural water. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Aghris S, Alaoui OT, Laghrib F, Farahi A, Bakasse M, Saqrane S, Lahrich S, El Mhammedi M. Extraction and determination of flubendiamide insecticide in food samples: A review. Curr Res Food Sci 2022; 5:401-413. [PMID: 35243353 PMCID: PMC8861570 DOI: 10.1016/j.crfs.2022.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 01/06/2023] Open
Abstract
Flubendiamide (FBD) is the first commercially available phthalic acid diamide that targets ryanodine receptors (RyRs) in insects, which play a major role in lepidoptera control. However, excessive use of FBD can influence the quality of treated products leading to toxic effects on human health. The availability of rapid and convenient methods for evaluating FBD amount in the environment is necessary. Therefore, analytical methods were developed for the determination of residues of FBD and its metabolite desiodo in different food matrices like tomato, cabbage, pigeon pea, apple, chilli and rice. The current review carries forward methods for FBD residues analysis in foods by using several chromatographic techniques including sample preparation steps. The comparison between the different methods employed for quantitative and qualitative analysis of food quality and safety is also discussed. Liquid chromatography (LC) is the predominant analytical method for assessing the quality of foods treated with FBD. Studies related to LC coupled multichannel detector (Ultraviolet (UV), Mass spectrometry (MS)) are also applied to detect pesticide residues. Extraction and clean up steps are essential to obtain reliable results. Moreover, this review reports the allowed limits of residues for the safety of consuming products treated with FBD.
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Affiliation(s)
- S. Aghris
- Sultan Moulay Slimane University, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, Khouribga, Morocco
| | - O. Tahiri Alaoui
- Moulay Ismail University, Laboratory of Physical Chemistry, Materials and Environment, Sciences and Technologies Faculty, Errachidia, Morocco
| | - F. Laghrib
- Sultan Moulay Slimane University, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, Khouribga, Morocco
- Sidi Mohamed Ben Abdellah University, Engineering Laboratory of Organometallic, Molecular Materials, and Environment, Faculty of sciences, Fes, Morocco
| | - A. Farahi
- Sultan Moulay Slimane University, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, Khouribga, Morocco
| | - M. Bakasse
- Sultan Moulay Slimane University, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, Khouribga, Morocco
- Chouaib Doukkali University, Organic Micropollutants Analysis Team, Faculty of Sciences, Morocco
| | - S. Saqrane
- Sultan Moulay Slimane University, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, Khouribga, Morocco
| | - S. Lahrich
- Sultan Moulay Slimane University, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, Khouribga, Morocco
| | - M.A. El Mhammedi
- Sultan Moulay Slimane University, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, Khouribga, Morocco
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Tchoffo R, Ngassa GBP, Doungmo G, Kamdem AT, Tonlé IK, Ngameni E. Surface functionalization of natural hydroxyapatite by polymerization of β-cyclodextrin: application as electrode material for the electrochemical detection of Pb(II). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:222-235. [PMID: 34342829 DOI: 10.1007/s11356-021-15578-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
A composite material prepared by polymerization of β-cyclodextrin (β-CD) on the surface of natural hydroxyapatite using citric acid as cross linker, was employed as electrode material for the detection of Pb(II). Hydroxyapatite was obtained from bovine bones, following a three-step procedure including pre-calcination, chemical treatment with (NH4)2HPO4, and calcination. The structure and morphology of the pristine hydroxyapatite (NHAPP0.5) and its functionalized counterpart (NHAPp0.5-CA-β-CD) were examined using XRD, FTIR, and SEM. Upon deposition as thin film on a glassy carbon electrode (GCE), the ion exchange ability of NHAPp0.5-CA-β-CD was exploited to elaborate a sensitive sensor for the detection of lead. The electroanalytical procedure was based on the chemical accumulation of Pb(II) ions under open-circuit conditions, followed by the detection of the preconcentrated species using differential pulse anodic stripping voltammetry. The reproducibility of the proposed method, based on a series of 8 measurements in a solution containing 2 μM Pb(II) gave a coefficient of variation of 1.27%. Significant parameters that can affect the stripping response of Pb(II) were optimized, leading to a linear calibration curve for lead in the concentration range of 2 × 10-8 mol L-1 - 20 × 10-8 mol L-1 (R2 = 0.998). The detection limit (3S/m) and the sensitivity of the proposed sensor were 5.06 × 10-10 mol L-1 and 100.80 μA.μM-1, respectively. The interfering effect of several ions expected to affect the determination of lead was evaluated, and the proposed sensor was successfully applied in the determination of Pb(II) ions in spring water, well water, river water and tap water samples.
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Affiliation(s)
- Rodrigue Tchoffo
- Laboratory of Analytical Chemistry, Faculty of Science, The University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon
| | - Guy B P Ngassa
- Laboratory of Analytical Chemistry, Faculty of Science, The University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon.
- Department of Chemistry, University of Douala, P.O. Box 24157, Douala, Cameroon.
| | - Giscard Doungmo
- Institute of Inorganic Chemistry, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straβe 2, 24118, Kiel, Germany
| | - Arnaud T Kamdem
- Freiburg Materials Research Center (FMF), University of Freiburg, Stefan Meier Strasse 21, 79104, Freiburg, Germany
| | - Ignas K Tonlé
- Laboratory of Analytical Chemistry, Faculty of Science, The University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon.
- Chemistry of Materials and Electrochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | - Emmanuel Ngameni
- Laboratory of Analytical Chemistry, Faculty of Science, The University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon
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8
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Blanco E, Rocha L, Pozo MD, Vázquez L, Petit-Domínguez MD, Casero E, Quintana C. A supramolecular hybrid sensor based on cucurbit[8]uril, 2D-molibdenum disulphide and diamond nanoparticles towards methyl viologen analysis. Anal Chim Acta 2021; 1182:338940. [PMID: 34602204 DOI: 10.1016/j.aca.2021.338940] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/20/2021] [Accepted: 08/10/2021] [Indexed: 11/15/2022]
Abstract
We develop an electrochemical sensor by using 2D-transition metal dichalcogenides (TMD), specifically MoS2, and nanoparticles stabilized with cucurbit[8]uril (CB[8]) incorporated together with them. Two different nanoparticles are assayed: diamond nanoparticles (DNPs) and gold nanoparticles (AuNp). 0D materials, together with TMD, provide increased conductivity and active surface while the macrocycle CB[8] affords selectivity towards the guest methyl viologen (MV2+), also named paraquat. Glassy Carbon (GC) electrodes are modified by drop-casting of suspensions of MoS2, followed by either a CB[8]-DNPs hybrid dispersion or a CB[8]-AuNp suspension. Atomic force microscopy is employed for the morphological characterization of the electrochemical sensor surface while cyclic voltammetry and electrochemical impedance spectroscopy techniques allow the electrochemical characterization of the sensor. The well-stablished signals of CB[8]-encapsulated MV2+ arise in voltammetric measurements when the macrocycle modifies the 0D-materials. Once the sensor construction and differential pulse voltammetry parameters have been optimized for quantification purposes, calibration procedures are performed with the platform GC/MoS2/CB[8]-DNPs. This sensing platform shows linear relations between peak intensity and the MV2+ concentration in the linear concentration range of (0.73-8.0) · 10-6 M with a limit of detection of 2.2 · 10-7 M. Analyses of river water samples fortified with MV2+ at the μM level shows recoveries of 100% with RSD values of 6.4% (n = 3).
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Affiliation(s)
- Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Laura Rocha
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Vázquez
- ESISNA Group, Instituto de Ciencia de Materiales de Madrid (CSIC), C/ Sor Juana Inés de La Cruz, Nº3. Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, C/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de La Universidad Autónoma de Madrid, 28049, Madrid, Spain.
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9
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Biochar obtained from spent coffee grounds: Evaluation of adsorption properties and its application in a voltammetric sensor for lead (II) ions. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106114] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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El Mhammedi MA, Saqrane S, Lahrich S, Laghrib F, El Bouabi Y, Farahi A, Bakasse M. Current Trends in Analytical Methods for the Determination of Hydroxychloroquine and Its Application as Treatment for COVID‐19. ChemistrySelect 2020. [DOI: 10.1002/slct.202003361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Moulay Abderrahim El Mhammedi
- Sultan Moulay Slimane University of Beni Mellal Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga Morocco
| | - Sanaa Saqrane
- Sultan Moulay Slimane University of Beni Mellal Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga Morocco
| | - Sara Lahrich
- Sultan Moulay Slimane University of Beni Mellal Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga Morocco
| | - Fathellah Laghrib
- Sultan Moulay Slimane University of Beni Mellal Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga Morocco
| | - Younes El Bouabi
- Sultan Moulay Slimane University of Beni Mellal Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga Morocco
| | - Abdelfettah Farahi
- Sultan Moulay Slimane University of Beni Mellal Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga Morocco
| | - Mina Bakasse
- Chouaib Doukkali University Faculty of Sciences Laboratory of Organic Bioorganic Chemistry and Environment El Jadida Morocco
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11
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Electrochemical/chemical synthesis of hydroxyapatite on glassy carbon electrode for electroanalytical determination of cysteine. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04856-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Pourakbari Z, Aliakbar A, Sheykhan M. A metal-catex composite electrode for determination of paraquat in various samples by Ad-differential pulse cathodic stripping voltammetry. Talanta 2020; 212:120793. [PMID: 32113555 DOI: 10.1016/j.talanta.2020.120793] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 11/19/2022]
Abstract
In this work, a novel kind of metal-catex composite electrode for determination of paraquat (PQ) by adsorptive differential pulse voltammetry is introduced. The metal-catex composite electrode was fabricated by cathodic electropolymerization of p-nitrophenol and p-nitrobenzoic acid in the presence of tin (II) chloride as a scaffold for composite structure on prepared glassy carbon electrode. Electropolymerization was carried out in sodium acetate medium. The surface of the fabricated electrode was characterized with field emission scanning electron microscope and energy-dispersive X-ray spectrometry. The obtained results show that there are Sn nanoparticles in the structure of the catex-composite. Chemical structure of metal-catex composite electrode was investigated using FTIR (ATR), 13C NMR, H NMR and a suitable mechanism for electropolymerization has been proposed. This metal-catex composite electrode was applied for determinations of PQ using sodium acetate buffer solutions at pH = 6.5 as an electrolyte solution. All parameters influencing the performance of the fabricated electrode were studied and optimized. The proposed electrode exhibits good linearity versus PQ concentration in the range of 3.8 × 10-8 to 7.7 × 10-7 mol L-1 and shows a manifold increase in sensitivity (more than 30 times) as compared to the glassy carbon electrode. The LOQ of this electrode was 7.78 × 10-9 mol L-1, which is comparable with that of other electrochemical methods. The mean, standard deviation and relative standard deviation for seven repetitive determinations of paraquat (7.78 × 10-8 mol L-1) were measured to be 7.75 × 10-8 mol L-1, ±0.29 × 10-8 mol L-1, and 3.75% respectively. This electrode was applied for the determination of paraquat in natural water, natural juice, potatoes and onions. The introduced electrode shows good stability with repeated use and over long periods (about 20 days). There is a good agreement between the results for water analysis by this method and the standard method.
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Affiliation(s)
- Zahra Pourakbari
- Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box 4193833697, Rasht, Iran
| | - Alireza Aliakbar
- Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box 4193833697, Rasht, Iran.
| | - Mehdi Sheykhan
- Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box 4193833697, Rasht, Iran
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Laghrib F, Bakasse M, Lahrich S, El Mhammedi MA. Electrochemical sensors for improved detection of paraquat in food samples: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110349. [PMID: 31761239 DOI: 10.1016/j.msec.2019.110349] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 10/06/2019] [Accepted: 10/20/2019] [Indexed: 12/20/2022]
Abstract
Paraquat (1,10-dimethyl-4,40-dipyridinium chloride), also known as methyl viologen, is widely used as a quaternary ammonium herbicide (broadleaf weed killer) all over the world owing to its excellent effect in plant cells for crop protection and horticultural use. However, it is dangerous because of its high acute toxicity even at low concentrations. Its detection in the environment is therefore necessary. As a consequence of its widespread usage, it causes genotoxic, teratogenic as well as other environmental and ecological adverse impacts. Exposure to PQ leads to a high mortality rate because no specific drug is effective for treatment. Excessive consumption of PQ can cause cellular damage and necrosis in the brain, heart, lungs, liver, and kidneys. The diversity and sensitivity of the analyses currently required have forced the experimenter to use more advanced and efficient techniques, which can provide qualitative and quantitative results in complex environments. Electrochemical methods generally meet these criteria while offering other advantages to achieve excellent accuracy and fast handling. This paper provides an overview of the determination of PQ using electrochemical methods combined with several modified electrodes in food samples, including milk, apple juice, tomato juice, and potato juice. Emphasis was placed on the most relevant modifiers used to generate high selectivity and sensitivity such as noble metals, metallic nanoparticles, polymers, biomolecules, clay, and apatite minerals. Comprehensively, it is strongly convincing that the synergy between the sensor substrate and the modifier architecture gives the electrodes a high capacity to detect paraquat in complex matrices such as food. In line with the context, information's on the mechanism of electrooxidation or reduction of PQ has been reported with the discussion of some future prospects and some insights. To the best of our knowledge, there is no review article relating the electrochemical determination of paraquat.
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Affiliation(s)
- F Laghrib
- Univ. Sultan Moulay Slimane, Laboratoire de Chimie, Modélisation et Sciences de l'Environnement, Faculté Polydisciplinaire, 25 000, Khouribga, Morocco
| | - M Bakasse
- Univ. Chouaib Doukkali, Equipe d'Analyse des Micropolluants Organiques, Faculté de Sciences, El-Jadida, Morocco
| | - S Lahrich
- Univ. Sultan Moulay Slimane, Laboratoire de Chimie, Modélisation et Sciences de l'Environnement, Faculté Polydisciplinaire, 25 000, Khouribga, Morocco
| | - M A El Mhammedi
- Univ. Sultan Moulay Slimane, Laboratoire de Chimie, Modélisation et Sciences de l'Environnement, Faculté Polydisciplinaire, 25 000, Khouribga, Morocco.
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Pacheco MR, Barbosa SC, Quadrado RFN, Fajardo AR, Dias D. Glassy carbon electrode modified with carbon black and cross-linked alginate film: a new voltammetric electrode for paraquat determination. Anal Bioanal Chem 2019; 411:3269-3280. [DOI: 10.1007/s00216-019-01769-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/28/2019] [Accepted: 03/07/2019] [Indexed: 12/11/2022]
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15
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A molecularly imprinted electrochemical sensor based on Au nanocross-chitosan composites for detection of paraquat. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-018-04192-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Dong H, Zou F, Hu X, Zhu H, Koh K, Chen H. Analyte induced AuNPs aggregation enhanced surface plasmon resonance for sensitive detection of paraquat. Biosens Bioelectron 2018; 117:605-612. [DOI: 10.1016/j.bios.2018.06.057] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 06/27/2018] [Accepted: 06/27/2018] [Indexed: 11/26/2022]
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17
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Tomková H, Sokolová R, Opletal T, Kučerová P, Kučera L, Součková J, Skopalová J, Barták P. Electrochemical sensor based on phospholipid modified glassy carbon electrode - determination of paraquat. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Nasir T, Herzog G, Hébrant M, Despas C, Liu L, Walcarius A. Mesoporous Silica Thin Films for Improved Electrochemical Detection of Paraquat. ACS Sens 2018; 3:484-493. [PMID: 29338195 DOI: 10.1021/acssensors.7b00920] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
An electrochemical method was developed for rapid and sensitive detection of the herbicide paraquat in aqueous samples using mesoporous silica thin film modified glassy carbon electrodes (GCE). Vertically aligned mesoporous silica thin films were deposited onto GCE by electrochemically assisted self-assembly (EASA). Cyclic voltammetry revealed effective response to the cationic analyte (while rejecting anions) thanks to the charge selectivity exhibited by the negatively charged mesoporous channels. Square wave voltametry (SWV) was then used to detect paraquat via its one electron reduction process. Influence of various experimental parameters (i.e., pH, electrolyte concentration, and nature of electrolyte anions) on sensitivity was investigated and discussed with respect to the mesopore characteristics and accumulation efficiency, pointing out the key role of charge distribution in such confined spaces on these processes. Calibration plots for paraquat concentration ranging from 10 nM to 10 μM were constructed at mesoporous silica modified GCE which were linear with increasing paraquat concentration, showing dramatically enhanced sensitivity (almost 30 times) as compared to nonmodified electrodes. Finally, real samples from Meuse River (France) spiked with paraquat, without any pretreatment (except filtration), were analyzed by SWV, revealing the possible detection of paraquat at very low concentration (10-50 nM). Limit of detection (LOD) calculated from real sample analysis was found to be 12 nM, which is well below the permissible limits of paraquat in drinking water (40-400 nM) in various countries.
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Affiliation(s)
- Tauqir Nasir
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Grégoire Herzog
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Marc Hébrant
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Christelle Despas
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Liang Liu
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l’Environnement (LCPME), UMR 7564, CNRS − Université de Lorraine, 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
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CTAB immobilized carbon paste electrode for the determination of mesalazine: A cyclic voltammetric method. SENSING AND BIO-SENSING RESEARCH 2017. [DOI: 10.1016/j.sbsr.2017.08.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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Promoting Influence of Activated Carbon used in Carbon Paste Electrode on Platinum Nanoparticles Efficiency in Methanol Electrooxidation. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Chuntib P, Themsirimongkon S, Saipanya S, Jakmunee J. Sequential injection differential pulse voltammetric method based on screen printed carbon electrode modified with carbon nanotube/Nafion for sensitive determination of paraquat. Talanta 2017; 170:1-8. [PMID: 28501144 DOI: 10.1016/j.talanta.2017.03.073] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 03/24/2017] [Indexed: 11/30/2022]
Abstract
The screen-printed carbon electrode (SPCE) modified with various nanoparticles has been studied for using as a working electrode in voltammetric technique. The electrochemical behavior of paraquat on different electrodes was studied by cyclic voltammetry (CV), and then differential pulse voltammetry (DPV) has been employed for trace analysis of paraquat based on redox reaction which the peak current was directly proportional to the concentration of paraquat in the solution. The SPCE modified with carbon nanotube dispersed in Nafion and ethanol (SPCE-CNT/Nafion) gave the best result. Sequential injection-differential pulse voltammetric (SI-DPV) method has been developed for more automated analysis and to reduce chemical consumption. The parameters affecting the SI-DPV system such as step potential, modulation amplitude, flow rate, and concentration of sodium chloride as an electrolyte were studied to improve the sensitivity. Under the optimum condition of the system, i.e., Nafion concentration of 1% (w/v), volume of CNT suspension of 2µL, flow rate of 100µLs-1, step potential of 5mV, modulation amplitude of 100mV and concentration of sodium chloride of 1M, a linear calibration graph in the range of 0.54-4.30µM with a good R2 of 0.9955 and a limit of detection of 0.17µM (0.03mgL-1) were achieved. The proposed system shows high tolerance to some possible interfering ions in natural water, surfactant, and other pesticides. The relative standard deviation (RSD) was 4.2% for 11 replicate measurements with the same electrode. The reproducibility for the preparation of 7 modified electrodes was 2.3% RSD. Recoveries of the analysis were obtained in the range of 82-106%. The developed system can be conveniently applied for analysis without pretreatment of the samples.
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Affiliation(s)
- Prakit Chuntib
- Department of Chemistry and Research Laboratory for Analytical Instrument and Electrochemistry Innovation, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Suwaphid Themsirimongkon
- Department of Chemistry and Research Laboratory for Analytical Instrument and Electrochemistry Innovation, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Surin Saipanya
- Department of Chemistry and Research Laboratory for Analytical Instrument and Electrochemistry Innovation, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jaroon Jakmunee
- Department of Chemistry and Research Laboratory for Analytical Instrument and Electrochemistry Innovation, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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22
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Safavi A, Mohammadzadeh M, Sorouri M. Design and application of a composite electrode using molecular wire as the binder. Microchem J 2017. [DOI: 10.1016/j.microc.2016.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Teradale AB, Lamani SD, Swamy BEK, Ganesh PS, Das SN. Electrochemical Investigation of Catechol at Poly(niacinamide) Modified Carbon Paste Electrode: A Voltammetric Study. ADVANCES IN PHYSICAL CHEMISTRY 2016; 2016:1-8. [DOI: 10.1155/2016/8092860] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
A polymeric thin film modified electrode, that is, poly(niacinamide) modified carbon paste electrode (MCPE), was developed for the electrochemical determination of catechol (CC) by using cyclic voltammetric technique. Compared to bare carbon paste electrode (BCPE), the poly(niacinamide) MCPE shows good electrocatalytic activity towards the oxidation of catechol in phosphate buffer solution (PBS) of physiological pH 7.4. All experimental parameters were optimized. Poly(niacinamide) modified carbon paste electrode gave a linear response between concentration of CC and its anodic peak current in the range within 20.6–229.0 μM. The limit of detection (3S/M) and limit of quantification (10S/M) were 1.497 μM and 4.99 μM, respectively. From the study of scan rate variation, the electrode process was found to be adsorption-controlled. The involvement of protons and electrons in the oxidation of CC was found to be equal. The probable electropolymerisation mechanism of niacinamide was proposed. Finally, this method can be used in development of a sensor for sensitive determination of CC.
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Affiliation(s)
- A. B. Teradale
- Department of Chemistry, BLDEA’s College of Engineering and Technology Affiliated to VTU Belagavi, Vijayapur, Karnataka, India
| | - S. D. Lamani
- Department of Chemistry, BLDEA’s SB Arts and KCP Science College, Vijayapur, Karnataka, India
| | - B. E. Kumara Swamy
- Department of PG Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shimoga, Karnataka 577451, India
| | - P. S. Ganesh
- Department of PG Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shimoga, Karnataka 577451, India
| | - S. N. Das
- Department of Chemistry, BLDEA’s College of Engineering and Technology Affiliated to VTU Belagavi, Vijayapur, Karnataka, India
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Samiec P, Navrátilová Z. Electrochemical behaviour of bromazepam and alprazolam and their determination in the pharmaceutical tablets Lexaurin and Xanax on carbon paste electrode. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1859-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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25
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Ma H, An R, Chen L, Fu Y, Ma C, Dong X, Zhang X. A study of the photodeposition over Ti/TiO2 electrode for electrochemical detection of heavy metal ions. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.04.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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26
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Li J, Lei W, Xu Y, Zhang Y, Xia M, Wang F. Fabrication of polypyrrole-grafted nitrogen-doped graphene and its application for electrochemical detection of paraquat. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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27
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Kuznetsova TA, Beschastnyĭ AP, Alferov SV, Trotsenko IA. [Properties of modified amperometric biosensors based on methanol dehydrogenase and Methylobacterium nodulans cells]. APPL BIOCHEM MICRO+ 2014; 49:613-8. [PMID: 25434185 DOI: 10.1134/s0003683813060100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The properties of amperometric biosensors based on methanol dehydrogenase (MDH), Methylobacterium nodulans cells, and the ferrocene-modified carbon paste electrode were investigated. It was shown that the addition ofhydroxyapatite (HA) to a carbon paste increased the sensitivity and operating stability of MDH biosensors. The linear range of the electrode was 0.0135-0.5 and 0.032-1.5 mM for methanol and formaldehyde, respectively. The detection limit of methanol and formaldehyde was 4.5 and 11.0 microM, respectively. The loss of activity of the electrode within 10 days of storage in the presence of 2.0 mM KCN did not exceed 12%. Cyanide (10 mM) completely inhibited the sensor responses to formaldehyde (1.0 mM), which allowed for the selective determination of methanol in the presence of formaldehyde. The biosensor based on cells exhibited lower stability and sensitivity toward methanol and formaldehyde; the sensitivity coefficients were 980 and 21 nA/mM, respectively.
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28
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Santos MSF, Madeira LM, Alves A. Different Approaches for Paraquat Quantification in Waters. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.913526] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mónica S. F. Santos
- a LEPABE – Laboratory for Process, Environmental, Biotechnology and Energy Engineering, Faculty of Engineering , University of Porto , Porto , Portugal
| | - Luis M. Madeira
- a LEPABE – Laboratory for Process, Environmental, Biotechnology and Energy Engineering, Faculty of Engineering , University of Porto , Porto , Portugal
| | - Arminda Alves
- a LEPABE – Laboratory for Process, Environmental, Biotechnology and Energy Engineering, Faculty of Engineering , University of Porto , Porto , Portugal
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29
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El Aroui F, Lahrich S, Farahi A, Achak M, El Gaini L, Bakasse M, Bouzidi A, El Mhammedi MA. Palladium Particles-Impregnated Natural Phosphate Electrodes for Electrochemical Determination of Mercury in Ambient Water Samples. ELECTROANAL 2014. [DOI: 10.1002/elan.201400126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Simultaneous determination of theophylline and caffeine by large mesoporous carbon/Nafion modified electrode. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.07.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Bozal-Palabiyik B, Dogan-Topal B, Uslu B, Can A, Ozkan SA. Sensitive voltammetric assay of etoposide using modified glassy carbon electrode with a dispersion of multi-walled carbon nanotube. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2184-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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32
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El Mhammedi M, Achak M, Bakasse M. Evaluation of a platinum electrode modified with hydroxyapatite in the lead(II) determination in a square wave voltammetric procedure. ARAB J CHEM 2013. [DOI: 10.1016/j.arabjc.2010.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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33
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Abbar JC, Nandibewoor ST. Voltammetric oxidation and determination of atorvastatin based on the enhancement effect of cetyltrimethyl ammonium bromide at a carbon paste electrode. Colloids Surf B Biointerfaces 2013; 106:158-64. [DOI: 10.1016/j.colsurfb.2013.01.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 01/10/2013] [Accepted: 01/17/2013] [Indexed: 11/24/2022]
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34
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Teradal NL, Kalanur SS, Prashanth SN, Seetharamappa J. Electrochemical investigations of an anticancer drug in the presence of sodium dodecyl sulfate as an enhancing agent at carbon paste electrode. J APPL ELECTROCHEM 2012. [DOI: 10.1007/s10800-012-0473-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Malode SJ, Shetti NP, Nandibewoor ST. Voltammetric behavior of theophylline and its determination at multi-wall carbon nanotube paste electrode. Colloids Surf B Biointerfaces 2012; 97:1-6. [DOI: 10.1016/j.colsurfb.2012.04.010] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 03/31/2012] [Accepted: 04/05/2012] [Indexed: 10/28/2022]
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36
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References. Anal Chem 2012. [DOI: 10.1201/b11478-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Electrochemical determination of paraquat using a DNA-modified carbon ionic liquid electrode. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0602-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Zhang Y, Liu Y, Ji X, Banks CE, Zhang W. Sea cucumber-like hydroxyapatite: cation exchange membrane-assisted synthesis and its application in ultra-sensitive heavy metal detection. Chem Commun (Camb) 2011; 47:4126-8. [DOI: 10.1039/c1cc10489f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Electrochemical oxidation behavior of 2,4-dinitrophenol at hydroxylapatite film-modified glassy carbon electrode and its determination in water samples. J Solid State Electrochem 2010. [DOI: 10.1007/s10008-010-1280-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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de Figueiredo-Filho L, dos Santos V, Janegitz B, Guerreiro T, Fatibello-Filho O, Faria R, Marcolino-Junior L. Differential Pulse Voltammetric Determination of Paraquat Using a Bismuth-Film Electrode. ELECTROANAL 2010. [DOI: 10.1002/elan.200900553] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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41
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Electrochemical oxidative determination of 4-nitrophenol based on a glassy carbon electrode modified with a hydroxyapatite nanopowder. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0309-1] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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42
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dos Santos LBO, Infante CMC, Masini JC. Development of a sequential injection-square wave voltammetry method for determination of paraquat in water samples employing the hanging mercury drop electrode. Anal Bioanal Chem 2010; 396:1897-903. [PMID: 20084371 DOI: 10.1007/s00216-009-3429-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 12/16/2009] [Accepted: 12/20/2009] [Indexed: 11/30/2022]
Abstract
This work describes the development and optimization of a sequential injection method to automate the determination of paraquat by square-wave voltammetry employing a hanging mercury drop electrode. Automation by sequential injection enhanced the sampling throughput, improving the sensitivity and precision of the measurements as a consequence of the highly reproducible and efficient conditions of mass transport of the analyte toward the electrode surface. For instance, 212 analyses can be made per hour if the sample/standard solution is prepared off-line and the sequential injection system is used just to inject the solution towards the flow cell. In-line sample conditioning reduces the sampling frequency to 44 h(-1). Experiments were performed in 0.10 M NaCl, which was the carrier solution, using a frequency of 200 Hz, a pulse height of 25 mV, a potential step of 2 mV, and a flow rate of 100 µL s(-1). For a concentration range between 0.010 and 0.25 mg L(-1), the current (i(p), µA) read at the potential corresponding to the peak maximum fitted the following linear equation with the paraquat concentration (mg L(-1)): i(p) = (-20.5 ± 0.3)C (paraquat) - (0.02 ± 0.03). The limits of detection and quantification were 2.0 and 7.0 µg L(-1), respectively. The accuracy of the method was evaluated by recovery studies using spiked water samples that were also analyzed by molecular absorption spectrophotometry after reduction of paraquat with sodium dithionite in an alkaline medium. No evidence of statistically significant differences between the two methods was observed at the 95% confidence level.
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Affiliation(s)
- Luciana B O dos Santos
- Departamento de Ciências Exatas e da Terra, Universidade do Estado da Bahia, Estrada das Barreiras, s/n, 41195-001, Salvador, BA, Brazil.
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43
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Hegde RN, Hosamani RR, Nandibewoor ST. Electrochemical Oxidation and Determination of Theophylline at a Carbon Paste Electrode Using Cetyltrimethyl Ammonium Bromide as Enhancing Agent. ANAL LETT 2009. [DOI: 10.1080/00032710903243620] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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44
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Zima J, Švancara I, Barek J, Vytřas K. Recent Advances in Electroanalysis of Organic Compounds at Carbon Paste Electrodes. Crit Rev Anal Chem 2009. [DOI: 10.1080/10408340903011853] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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El Mhammedi MA, Achak M, Chtaini A. Ca10(PO4)6(OH)2-modified carbon-paste electrode for the determination of trace lead(II) by square-wave voltammetry. JOURNAL OF HAZARDOUS MATERIALS 2009; 161:55-61. [PMID: 18455868 DOI: 10.1016/j.jhazmat.2008.03.057] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2008] [Revised: 03/11/2008] [Accepted: 03/11/2008] [Indexed: 05/26/2023]
Abstract
The analytical performance of hydroxyapatite Ca10(PO4)6(OH)2(HAp) screen-printed sensors designed for the detection of metals was evaluated. The hydroxyapatite plays an important role in modern analytical electrochemistry due to their usefulness for the preparation of sensors giving rise to improved responses from metals. The suitable HAp-modified carbon-paste electrode (HAp-CPE) for the electrochemical determination of lead is illustrated in this work using cyclic and square-wave voltammetry in the potential range between -0.3 and -0.8V. Perchlorate acid solution (1.0molL(-1)) was employed as the supporting electrolyte. The voltammetric measurements were carried out using as working electrode HAp-CPE, and a platinum electrode and an SCE electrode as auxiliary and reference electrodes, respectively. Under the optimized working conditions, calibration graph is linear for 5min of preconcentration time with the detection limit 7.68x10(-10)molL(-1). This detection limit is remarkably lower than those reported previously using other modified electrodes or amperometric detection. The results indicate that this electrode is sensitive and effective for the determination of Pb2+.
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Affiliation(s)
- M A El Mhammedi
- Equipe d'Electrochimie et des Matériaux Inorganiques, Université Cadi Ayyad, Faculté des Sciences et Techniques, BP 523, 23000 de Beni-Mellal, Morocco.
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