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Moulya KP, Manjunatha JG, Osman SM, Ataollahi N. A novel and efficient voltammetric sensor for the simultaneous determination of alizarin red S and tartrazine by using poly(leucine) functionalized carbon paste electrode. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2024; 59:103-112. [PMID: 38613456 DOI: 10.1080/10934529.2024.2339160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/27/2024] [Indexed: 04/15/2024]
Abstract
In the current work, a rapid, selective, and sensitive technique was developed for the detection of Alizarin Red S (ARS) by applying poly leucine modified carbon paste electrode (PLMCPE). Electrochemical impedance spectroscopy (EIS) and Scanning electron microscopy (SEM) were utilized to study the surface morphology of unmodified carbon paste electrode (UMCPE) and PLMCPE. The active surface area for UMCPE and PLMCPE was found to be 0.0012 cm2 and 0.0026 cm2 respectively. The electrochemical response of ARS at UMCPE and PLMCPE was analyzed using cyclic voltammetry (CV) in the potential window of 0.4 to 1.0 V. The cyclic voltammogram obtained for varying the pH of 0.2 M phosphate buffer (PB) solution showed maximum current for the oxidation of ARS at pH 6.5. The electrochemical reaction of ARS was found to be irreversible and adsorption controlled. The effect of variation of concentration of ARS on the oxidation peak current was evaluated using CV and linear scan voltammetry (LSV). A linear relationship between the concentration variation and current was obtained in the linear range of 1.5 μM-3.5 μM and 0.2 μM-5.0 μM for CV and LSV respectively. The limit of detection (LOD) of 0.68 μM for the CV method and 0.29 μM for the LSV method was exhibited by the developed sensor. The simultaneous study of ARS along with tartrazine (TZ) showed good selectivity for ARS. The interferents of foreign molecules showed no effect on the selectivity of the electrode. The applicability of PLMCPE on real samples gave good recovery ranging from 97.46-101.2%; hence, the sensor can be utilized on real samples. The developed sensor has good stability and sensitivity.
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Affiliation(s)
- Karnayana Prasad Moulya
- Department of Chemistry, FMKMC College, Mangalore University Constituent College, Madikeri, Karnataka, India
| | - Jamballi G Manjunatha
- Department of Chemistry, FMKMC College, Mangalore University Constituent College, Madikeri, Karnataka, India
| | - Sameh M Osman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Narges Ataollahi
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, Italy
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Hazarika R, Deffo G, Wamba HN, Hussain N, Kalita S, Basumatary M, Njanja E, Dasgupta S, Puzari P. Sensitive determination of 4,6-dinitro- o-cresol based on a glassy carbon electrode modified with Zr-UiO-66 metal-organic framework entrapped FMWCNTs. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 16:62-73. [PMID: 38058286 DOI: 10.1039/d3ay01723k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
A DNOC electrochemical sensor has been developed by using a composite of Zr-UiO-66 and FMWCNTs on a glassy carbon electrode (GCE) and using the differential pulse voltammetry technique. The synthesized materials were physico-chemically characterized by BET, PXRD, FTIR, TGA, EDX, and FESEM. Cyclic voltammetry showed that DNOC has three oxidation peaks at 0.03 V (RSD: 0.23%), 0.42 V (RSD: 0.21%), and 1.32 V (RSD: 0.32%) and three reduction peaks at - 0.20 V (RSD: 0.15%), - 0.82 V (RSD: 0.26%), and - 1.14 V (RSD: 0.19%) which follow a diffusion-controlled mechanism. Different parameters were optimized using differential pulse voltammetry and good linear ranges were found for the simultaneous detection of the three reduction peaks. For a specific concentration range of 0.1-50 μM, a limit of detection of 0.119 μM based on 3Sb/m was obtained. The interfering effects of five non-phenolic pesticides and five heavy metals were evaluated to highlight the selectivity of the developed sensor. It is the first report of an electrochemical DNOC sensor in which all three oxidation peaks are prominently visible. Ethion and chloropyriphos were found to inhibit the redox process of DNOC on the developed sensor platform Zr-UiO-66/FMWCNT/GCE. The sensor was successfully applied to DNOC determination in spiked potato samples and the results showed a standard deviation of less than 3%. The proposed method is expected to provide a novel platform for the quantitative determination of DNOC pesticides in vegetables.
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Affiliation(s)
- Ranjit Hazarika
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India.
| | - Gullit Deffo
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India.
- Electrochemistry and Chemistry of Materials, Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | | | - Nayab Hussain
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India.
| | - Shyamali Kalita
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India.
| | - Mwina Basumatary
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India.
| | - Evangéline Njanja
- Electrochemistry and Chemistry of Materials, Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Soumen Dasgupta
- CSIR-Indian Institute of Petroleum, Dehradun, 248005, Uttarakhand, India
| | - Panchanan Puzari
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India.
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Elaboration of a novel nanosensor using nanoparticles of α-Fe2O3 magnetic cores for the detection of metronidazole drug. Urine human and tap water. SENSORS INTERNATIONAL 2022. [DOI: 10.1016/j.sintl.2022.100160] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Saadeh SM, Abu Shawish HM, Abu Foul MY. Lowering detection limits of copper(II)-selective carbon paste electrodes using an SNO- and an SNNS- Schiff base ligands. SENSORS INTERNATIONAL 2022. [DOI: 10.1016/j.sintl.2021.100151] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Deffo G, Temgoua RCT, Tajeu KY, Njanja E, Doungmo G, Tonle IK, Ngameni E. Signal amplification by electropolymerization of alizarin red S for improved diuron detection at organosmectite modified glassy carbon electrode. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gullit Deffo
- Faculty of Science, Department of Chemistry, Electrochemistry and Chemistry of Materials University of Dschang Dschang Cameroon
| | - Ranil Clément Tonleu Temgoua
- Faculty of Science, Department of Chemistry, Electrochemistry and Chemistry of Materials University of Dschang Dschang Cameroon
- CNRS, CEISAM UMR 6230 Université de Nantes Nantes France
| | - Kevin Yemele Tajeu
- Faculty of Science, Department of Chemistry, Electrochemistry and Chemistry of Materials University of Dschang Dschang Cameroon
| | - Evangéline Njanja
- Faculty of Science, Department of Chemistry, Electrochemistry and Chemistry of Materials University of Dschang Dschang Cameroon
| | - Giscard Doungmo
- Institute of Inorganic Chemistry Christian‐Albrechts‐Universität zu Kiel Kiel Germany
| | - Ignas Kenfack Tonle
- Faculty of Science, Department of Chemistry, Electrochemistry and Chemistry of Materials University of Dschang Dschang Cameroon
| | - Emmanuel Ngameni
- Faculty of Science, Department of Chemistry, Laboratory of Analytical Chemistry University of Yaoundé 1 Yaoundé Cameroon
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