1
|
Mijajlović A, Stanković V, Vlahović F, Đurđić S, Manojlović D, Stanković D. The cathodically pretreated boron-doped diamond electrode as an environmentally friendly electrochemical tool for the detection and monitoring of mesotrione in food samples. Food Chem 2024; 447:138993. [PMID: 38493684 DOI: 10.1016/j.foodchem.2024.138993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/29/2024] [Accepted: 03/09/2024] [Indexed: 03/19/2024]
Abstract
Excessive pesticide use can harm human health, making it essential to develop new techniques to monitor hazardous pesticides in food. Our study focuses on detecting mesotrione (MST) using an unmodified boron-doped diamond (BDD) electrode. This was the first application of cathodically pretreated BDD electrode for the detection of MST, based on its oxidation at a high potential value of +1.4 V. We theoretically examined the oxidation mechanism of MST trough the utilization of density functional theory (DFT) methodology. The utilized DPV method achieved a detection limit of 0.45 μM and showed satisfactory selectivity. The practical application of this method was demonstrated by examining corn-based food products. To ensure practical application of the method, MST was deliberately added to the samples to evaluate the accuracy of the proposed method. The effectiveness of the method was confirmed by using HPLC method. This environmentally-friendly approach can establish a solid foundation for future use in food analysis.
Collapse
Affiliation(s)
- Aleksandar Mijajlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Vesna Stanković
- Institute of Chemistry, Technology and Metallurgy - National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia.
| | - Filip Vlahović
- Institute of Chemistry, Technology and Metallurgy - National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Slađana Đurđić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Dragan Manojlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Dalibor Stanković
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia; Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| |
Collapse
|
2
|
Gonçalves-Filho D, De Souza D. Trends in pulse voltammetric techniques applied to foodstuffs analysis: The food additives detection. Food Chem 2024; 454:139710. [PMID: 38815328 DOI: 10.1016/j.foodchem.2024.139710] [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: 11/15/2023] [Revised: 03/11/2024] [Accepted: 05/14/2024] [Indexed: 06/01/2024]
Abstract
Food additives are chemical compounds intentionally added during foodstuff production to control technological functions, such as pH, viscosity, stability (color, flavor, taste, and odor), homogeneity, and loss of nutritional value. These compounds are fundamental in inhibition the degradation process and prolonging the shelf life of foodstuffs. However, their inadequate employment or overconsumption can adversely affect consumers' health with the development of allergies, hematological, autoimmune, and reproductive disorders, as well as the development of some types of cancer. Thus, the development and application of simple, fast, low-cost, sensitivity, and selectivity analytical methods for identifying and quantifying food additives from various chemical classes and in different foodstuffs are fundamental to quality control and ensuring food safety. This review presents trends in the detection of food additives in foodstuffs using differential pulse voltammetry and square wave voltammetry, the main pulse voltammetric techniques, indicating the advantages, drawbacks, and applicability in food analysis. Are discussed the importance of adequate choices of working electrode materials in the improvements of analytical results, allowing reliable, accurate, and inexpensive voltammetric methods for detecting these compounds in foodstuffs samples.
Collapse
Affiliation(s)
- Danielle Gonçalves-Filho
- Laboratory of Electroanalytical Applied to Biotechnology and Food Engineering (LEABE), Chemistry Institute, Uberlândia Federal University, Major Jerônimo street, 566, Patos de Minas, MG 38700-002, Brazil
| | - Djenaine De Souza
- Laboratory of Electroanalytical Applied to Biotechnology and Food Engineering (LEABE), Chemistry Institute, Uberlândia Federal University, Major Jerônimo street, 566, Patos de Minas, MG 38700-002, Brazil.
| |
Collapse
|
3
|
Ganesh PS, Elugoke SE, Lee SH, Kim SY, Ebenso EE. Smart and emerging point of care electrochemical sensors based on nanomaterials for SARS-CoV-2 virus detection: Towards designing a future rapid diagnostic tool. CHEMOSPHERE 2024; 352:141269. [PMID: 38307334 DOI: 10.1016/j.chemosphere.2024.141269] [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: 11/20/2023] [Revised: 01/08/2024] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
In the recent years, researchers from all over the world have become interested in the fabrication of advanced and innovative electrochemical and/or biosensors for respiratory virus detection with the use of nanotechnology. These fabricated sensors demonstrated a number of benefits, including precision, affordability, accessibility, and miniaturization which makes them a promising test method for point-of-care (PoC) screening for SARS-CoV-2 viral infection. In order to comprehend the principles of electrochemical sensing and the role of various types of sensing interfaces, we comprehensively explored the underlying principles of electroanalytical methods and terminologies related to it in this review. In addition, it is addressed how to fabricate electrochemical sensing devices incorporating nanomaterials as graphene, metal/metal oxides, metal organic frameworks (MOFs), MXenes, quantum dots, and polymers. We took an effort to carefully compile current developments, advantages, drawbacks, possible solutions in nanomaterials based electrochemical sensors.
Collapse
Affiliation(s)
- Pattan Siddappa Ganesh
- Interaction Laboratory, Advanced Technology Research Center, Future Convergence Engineering, Korea University of Technology and Education, Cheonan-si, Chungcheongnam-do, 330-708, Republic of Korea.
| | - Saheed Eluwale Elugoke
- Centre for Material Science, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa; Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa
| | - Seok-Han Lee
- Interaction Laboratory, Advanced Technology Research Center, Future Convergence Engineering, Korea University of Technology and Education, Cheonan-si, Chungcheongnam-do, 330-708, Republic of Korea
| | - Sang-Youn Kim
- Interaction Laboratory, Advanced Technology Research Center, Future Convergence Engineering, Korea University of Technology and Education, Cheonan-si, Chungcheongnam-do, 330-708, Republic of Korea.
| | - Eno E Ebenso
- Centre for Material Science, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa; Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa.
| |
Collapse
|
4
|
Bhimaraya K, Manjunatha JG, Nagarajappa H, Tighezza AM, Albaqami MD, Sillanpää M. Development of a sensitive and inexpensive electrochemical sensor for indigotin using poly(valine) modified carbon paste electrode. Heliyon 2023; 9:e20937. [PMID: 37928007 PMCID: PMC10623149 DOI: 10.1016/j.heliyon.2023.e20937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/22/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023] Open
Abstract
In this study, an electro-polymerized valine (VLN) stimulated carbon paste electrode (CPE) was used to create a straightforward, inexpensive, and renewable electrochemical sensor for accurate and selective indigotin (IGN) determination. Comparing the CPE, to the modified electrode, it exhibits excellent sensibility for the IGN oxidation-reduction reaction. Multiple techniques, including cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM) were utilized in this case to characterize the electrode materials. IGN was analyzed using CPE and poly(valine) modified carbon paste electrodes (P(VLN)MCPE) taking a 6.5 pH in 0.2 M phosphate buffer solution (PBS). Because it has more active spots than the CPE and a strong electrocatalytic nature, P(VLN)MCPE exhibits excellent electrochemical performance. The impact of pH, scan rate, numerous interferents, and fluctuation in analyte concentration were only a few of the important electrochemical factors that were investigated. The variation in scan rate proves that the IGN oxidation-reduction reaction on the surface of P(VLN)MCPE is as follows an adsorption-controlled pathway. The P(VLN)MCPE displays a good electrochemical nature for IGN in the 0.2 to 5.0 μM range, with a low limit of detection (LOD) is 0.0069 μM and a limit of quantification (LOQ) is 0.023 μM. P(VLN)MCPE shows good reproducibility, stability, and repeatability for the detection of IGN. Additionally, P(VLN)MCPE's analytical applicability for IGN detection in water sample was assessed with impressive recovery.
Collapse
Affiliation(s)
- Kanthappa Bhimaraya
- Department of Chemistry FMKMC, College, Madikeri, Mangalore University Constituent College, Karnataka, 571201, India
| | - Jamballi G. Manjunatha
- Department of Chemistry FMKMC, College, Madikeri, Mangalore University Constituent College, Karnataka, 571201, India
| | - Hareesha Nagarajappa
- Department of Chemistry FMKMC, College, Madikeri, Mangalore University Constituent College, Karnataka, 571201, India
| | - Ammar M. Tighezza
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Munirah D. Albaqami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mika Sillanpää
- Department of Biological and Chemical Engineering, Aarhus University, Norrebrogade 44, 8000 Aarhus C, Denmark
| |
Collapse
|
5
|
Sun Y. Research on Detection of Sterol Doping in Sports by Electrochemical Sensors: A Review. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2022; 2022:3394079. [PMID: 36117750 PMCID: PMC9477621 DOI: 10.1155/2022/3394079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
The use of doping by athletes to improve performance is prohibited. Therefore, doping testing is an important step to ensure fairness in sports. Doping is gradually metabolized in the body and is therefore difficult to detect immediately by a common method. At the same time, the emergence of new doping agents poses a challenge for highly sensitive detection. Electrochemical sensors are a fast, highly sensitive, and inexpensive analytical detection technology. It provides qualitative and quantitative determination of analytes by altering the electrochemical signal of the analyte or probe at the electrode. In this min-review, we summarized the different electrochemical sensing strategies for sterol doping detection. Some of the representative papers were interpreted in detail. In addition, we compare different sensing strategies.
Collapse
Affiliation(s)
- Yunyan Sun
- Physical Education Department, Nanyang Institute of Technology, Nanyang, Henan 473000, China
| |
Collapse
|
6
|
Nano-Structured Carbon: Its Synthesis from Renewable Agricultural Sources and Important Applications. MATERIALS 2022; 15:ma15113969. [PMID: 35683277 PMCID: PMC9182223 DOI: 10.3390/ma15113969] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/24/2022] [Accepted: 05/30/2022] [Indexed: 11/24/2022]
Abstract
Carbon materials are versatile in nature due to their unique and modifiable surface and ease of production. Nanostructured carbon materials are gaining importance due to their high surface area for application in the energy, biotechnology, biomedical, and environmental fields. According to their structures, carbon allotropes are classified as carbon nanodots, carbon nanoparticles, graphene, oxide, carbon nanotubes, and fullerenes. They are synthesized via several methods, including pyrolysis, microwave method, hydrothermal synthesis, and chemical vapor deposition, and the use of renewable and cheaper agricultural feedstocks and reactants is increasing for reducing cost and simplifying production. This review explores the nanostructured carbon detailed investigation of sources and their relevant reports. Many of the renewable sources are covered as focused here, such as sugar cane waste, pineapple, its solid biomass, rise husk, date palm, nicotine tabacum stems, lapsi seed stone, rubber-seed shell, coconut shell, and orange peels. The main focus of this work is on the various methods used to synthesize these carbon materials from agricultural waste materials, and their important applications for energy storage devices, optoelectronics, biosensors, and polymer coatings.
Collapse
|
7
|
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.
Collapse
|
8
|
Wang YC, Chang CJ, Huang CF, Zhang HC, Kang CW. Polydopamine-Bi 2WO 6-Decorated Gauzes as Dual-Functional Membranes for Solar Steam Generation and Photocatalytic Degradation Applications. Polymers (Basel) 2021; 13:4335. [PMID: 34960886 PMCID: PMC8709115 DOI: 10.3390/polym13244335] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 11/18/2022] Open
Abstract
The dual-functional Bi2WO6/polydopamine (PDA)-modified gauze membrane has been developed for applications in photocatalytic degradation and solar steam generation. Two types of membrane were prepared by changing the growth sequence of Bi2WO6 nanomaterials and PDA on gauze substrates. The spatial distribution of Bi2WO6 and polydopamine has a great influence on light absorption, photocatalytic degradation, and solar steam generation performances. Bi2WO6 photocatalysts can absorb short-wavelength light for the photocatalytic decoloration of organic dyes. The photothermal polydopamine can convert light into heat for water evaporation. Besides, the gauze substrate provides water transport channels to facilitate water evaporation. The morphology, surface chemistry, and optical properties of Bi2WO6-PDA modified gauzes were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and diffuse reflectance spectra. The photothermal properties, wetting properties, and solar steam generation rates of the composite films were also studied. Degradation of 96% of indigo carmine was achieved after being irradiated for 120 min in the presence of G/PDA/BWNP. The water evaporation rates of the G/BWP/PDA sample under the irradiation of an Xe lamp (light intensity = 1000 W/m2) reached 1.94 kg·m-2·h-1.
Collapse
Affiliation(s)
- Yea-Chin Wang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan; (Y.-C.W.); (H.-C.Z.); (C.-W.K.)
| | - Chi-Jung Chang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan; (Y.-C.W.); (H.-C.Z.); (C.-W.K.)
| | - Chih-Feng Huang
- Department of Chemical Engineering, i-Center for Advanced Science and Technology (ICAST), National Chung Hsing University, Eng Bld 3, 250 Kuo Kuang Road, Taichung 40227, Taiwan;
| | - Hao-Cheng Zhang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan; (Y.-C.W.); (H.-C.Z.); (C.-W.K.)
| | - Chun-Wen Kang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan; (Y.-C.W.); (H.-C.Z.); (C.-W.K.)
| |
Collapse
|
9
|
Marimuthu M, Ganesan S, Yesuraj J. A Dual Functionality of Ternary Metal‐Oxide Nanoflakes for High‐Performance of Micro Supercapacitor and Electrochemical Sensing of Dyes in Water. ChemistrySelect 2021. [DOI: 10.1002/slct.202004840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Munuswamy Marimuthu
- Faculty of Engineering and Technology SRM Institute of Science and Technology Kattankulathur 603 203, Kancheepuram District Tamil Nadu India
| | - Shanmugam Ganesan
- Faculty of Engineering and Technology SRM Institute of Science and Technology Kattankulathur 603 203, Kancheepuram District Tamil Nadu India
| | - Johnbosco Yesuraj
- Department of Energy University of Madras, Guindy Campus Chennai 600025 Tamil Nadu India
| |
Collapse
|
10
|
Colorimetric and fluorometric nanoprobe for selective and sensitive recognition of hazardous colorant indigo carmine in beverages based on ion pairing with nitrogen doped carbon dots. Food Chem 2021; 349:129160. [PMID: 33550018 DOI: 10.1016/j.foodchem.2021.129160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 11/20/2022]
Abstract
Indigo carmine (IC) dye is hazardous and allergenic for humans even though it has been excessively used in a wide range of industries. Therefore, the quantitative determination of IC is still challenging. Herein, for the first time, we have developed fluorometric and colorimetric dual-mode nanoprobe derived from the ion-pair association complex between the negatively charged IC and positively charged N@C-dots in pH = 3.0. Consequently, the binding between N@C-dots and IC resulted in cyan blue and quenching of N@C-dots fluorescence. The dependence of the fluorescence response on IC concentrations was linear over the range of 0.73-10.0 µM (R2 = 0.9989) with LOD of 0.24 µM. On the other hand, the linearity of the colorimetric method ranged from 9.97 to 80.0 µM (R2 = 0.9986) with LOD of 3.3 µM. The sensor was applied for estimation of IC in fruit juice and soft drink without the need for exhaustive extraction steps.
Collapse
|
11
|
Mielech-Łukasiewicz K, Leoniuk M. Voltammetric determination of natamycin using a cathodically pretreated boron-doped diamond electrode in the presence of sodium dodecyl sulfate. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
12
|
Lourencao BC, Brocenschi RF, Medeiros RA, Fatibello‐Filho O, Rocha‐Filho RC. Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes. ChemElectroChem 2020. [DOI: 10.1002/celc.202000050] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bruna C. Lourencao
- Departamento de Química Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos – SP Brazil
| | - Ricardo F. Brocenschi
- Centro de Estudos do Mar Universidade Federal do Paraná (UFPR) C.P. 61 83255-976 Pontal do Paraná – PR Brazil
| | - Roberta A. Medeiros
- Departamento de Química Universidade Estadual de Londrina (UEL) C.P. 10.011 86057-970 Londrina – PR Brazil
| | - Orlando Fatibello‐Filho
- Departamento de Química Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos – SP Brazil
| | - Romeu C. Rocha‐Filho
- Departamento de Química Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos – SP Brazil
| |
Collapse
|
13
|
Santos AM, Silva TA, Vicentini FC, Fatibello-Filho O. Flow injection analysis system with electrochemical detection for the simultaneous determination of nanomolar levels of acetaminophen and codeine. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.04.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
14
|
Baluchová S, Daňhel A, Dejmková H, Ostatná V, Fojta M, Schwarzová-Pecková K. Recent progress in the applications of boron doped diamond electrodes in electroanalysis of organic compounds and biomolecules – A review. Anal Chim Acta 2019; 1077:30-66. [DOI: 10.1016/j.aca.2019.05.041] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/01/2019] [Accepted: 05/18/2019] [Indexed: 02/08/2023]
|
15
|
Deroco PB, Medeiros RA, Rocha-Filho RC, Fatibello-Filho O. Selective and simultaneous determination of indigo carmine and allura red in candy samples at the nano-concentration range by flow injection analysis with multiple pulse amperometric detection. Food Chem 2018; 247:66-72. [DOI: 10.1016/j.foodchem.2017.12.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 11/30/2017] [Accepted: 12/05/2017] [Indexed: 11/15/2022]
|
16
|
Jiang M, Yu H, Li X, Lu S, Hu X. Thermal oxidation induced high electrochemical activity of boron-doped nanocrystalline diamond electrodes. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.10.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
17
|
Brocenschi RF, Silva TA, Lourencao BC, Fatibello-Filho O, Rocha-Filho RC. Use of a boron-doped diamond electrode to assess the electrochemical response of the naphthol isomers and to attain their truly simultaneous electroanalytical determination. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.044] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
18
|
Electrochemical detection of arsenic(III) using porous gold via square wave voltammetry. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0100-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
19
|
Arvand M, Saberi M, Ardaki MS, Mohammadi A. Mediated electrochemical method for the determination of indigo carmine levels in food products. Talanta 2017; 173:60-68. [PMID: 28602192 DOI: 10.1016/j.talanta.2017.05.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 05/20/2017] [Accepted: 05/23/2017] [Indexed: 10/19/2022]
Abstract
In this paper, we have studied the electrochemical behavior of indigo carmine (IC) in the presence and absence of mediator molecules. We have used three azo dyes as mediators in our studies and the effect of mediator molecules on the electron transfer between the IC solution and the electrode surface was explained from the cyclic voltammograms data. Among these dyes, 4-(4-nitrophenilazo)N-benzyl,N-ethylaniline (NBE) showed good performance as an electron transfer mediator. The NBE/carbon paste was characterized with Fourier transform infrared spectroscopy and scanning electron microscopy methods. The redox peak currents of IC were enhanced significantly compared with those obtained at the unmodified electrode. Some parameters affecting sensor response were optimized and then the calibration curve was plotted. The oxidation peak current was proportional to the concentration of IC from 1 to 100μmolL-1. The detection limit was 0.36μmolL-1. The proposed electrode was successfully applied to the determination of IC in various real samples without complex sample pretreatment.
Collapse
Affiliation(s)
- Majid Arvand
- Electroanalytical Chemistry Laboratory, Faculty of Chemistry, University of Guilan, Namjoo Street, P.O. Box: 1914-41335, Rasht, Iran.
| | - Mehrnoosh Saberi
- Electroanalytical Chemistry Laboratory, Faculty of Chemistry, University of Guilan, Namjoo Street, P.O. Box: 1914-41335, Rasht, Iran
| | - Masoomeh Sayyar Ardaki
- Electroanalytical Chemistry Laboratory, Faculty of Chemistry, University of Guilan, Namjoo Street, P.O. Box: 1914-41335, Rasht, Iran
| | - Asadollah Mohammadi
- Electroanalytical Chemistry Laboratory, Faculty of Chemistry, University of Guilan, Namjoo Street, P.O. Box: 1914-41335, Rasht, Iran
| |
Collapse
|
20
|
Bai H, He P, Pan J, Chen J, Chen Y, Dong F, Li H. Boron-doped diamond electrode: Preparation, characterization and application for electrocatalytic degradation of m-dinitrobenzene. J Colloid Interface Sci 2017; 497:422-428. [PMID: 28314147 DOI: 10.1016/j.jcis.2017.03.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/25/2017] [Accepted: 03/02/2017] [Indexed: 10/20/2022]
Abstract
Boron-doped diamond (BDD) electrode was successfully prepared via microwave plasma chemical vapor deposition method and it was used in electrocatalytic degradation of m-dinitrobenzene (m-DNB). The electrocatalytic degradation efficiency of m-DNB was evaluated under different experimental parameters including current density, temperature, pH, Na2SO4 concentration and initial m-DNB concentration. Under optimal parameters, degradation efficiency of m-DNB reached up to 82.7% after 150min. The degradation process of m-DNB was fitted well with pseudo first-order kinetics. Moreover, UV and HPLC analyses implied that m-DNB was totally destroyed and mineralized after 240min degradation, and the proposed mechanism during the electrocatalytic degradation process was analyzed. All these results demonstrated that BDD electrode possessed excellent electrocatalytic property and showed a great potential application in wastewater treatment.
Collapse
Affiliation(s)
- Hongmei Bai
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Ping He
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China.
| | - Jing Pan
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Jingchao Chen
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Yang Chen
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Faqing Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Hong Li
- National Engineering Research Center for Municipal Wastewater Treatment and Reuse, Mianyang 621000, Sichuan, China
| |
Collapse
|