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Wei L, Gan W, Cai M, Cai H, Zhang G, Cheng X. Development of a novel HPLC-CDCL method utilizing nitrogen-doped carbon dots for sensitive and selective detection of dithiocarbamate pesticides in tea. Food Chem 2024; 458:140237. [PMID: 38996488 DOI: 10.1016/j.foodchem.2024.140237] [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: 04/18/2024] [Revised: 06/11/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024]
Abstract
In this study, S-methyl derivatives of dithiocarbamates (DTCs) were shown to significantly enhance chemiluminescence (CL) between Ce(IV) and efficient and environmentally friendly nitrogen-doped carbon dots (NCDs). Based on the elucidation of the CL mechanisms, an innovative approach involving high-performance liquid chromatography coupled with N-CDs and CL detection (HPLC-CDCL) was proposed. The developed method was successfully applied to the highly sensitive detection of three DTC fungicides (dimethyl dithiocarbamate, ethylene bisdithiocarbamate, and propylene bisdithiocarbamate) in tea. The recovery of the established method ranged 70.51-116.45%, with relative standard deviations (RSD) of <9.40%. The limit of detection (S/N = 3) was as low as 0.19 μg/L (as CS2), which is superior to the previous methods and comparable to UPLC-tandem mass spectrometry (MS/MS). Moreover, the proposed approach does not require solid-phase extraction and offers excellent selectivity. This study proposes a novel method for the detection of DTCs in the food safety and environmental fields.
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Affiliation(s)
- Lijun Wei
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, PR China; Jiangxi Province Key Laboratory of Preventive Medicine, School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330006, PR China.
| | - Weimin Gan
- Jiangxi Province Key Laboratory of Preventive Medicine, School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330006, PR China
| | - Mengdie Cai
- Jiangxi Province Key Laboratory of Preventive Medicine, School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330006, PR China
| | - Hongping Cai
- Jiangxi Province Key Laboratory of Preventive Medicine, School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330006, PR China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, PR China.
| | - Xianglei Cheng
- Jiangxi Province Key Laboratory of Preventive Medicine, School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330006, PR China.
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2
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Slathia S, Ipaves B, Campos de Oliveira C, Negedu SD, Sarkar S, Autreto PAS, Tiwary CS. Ultralow Detection of Mancozeb Using Two-Dimensional Cobalt Telluride (CoTe 2). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39007738 DOI: 10.1021/acs.langmuir.4c01549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Pesticides are crucial in modern agriculture because they reduce pests and boost yield, but they also represent major risks to human health and the environment; therefore, it is important to monitor their presence in food. Reliable and precise detection techniques are possible ways to address this issue. In this work, we utilize atomically thin (two-dimensional) cobalt telluride (CoTe2) with a high surface area and charge as a template material to detect mancozeb using spectroscopic and electrochemical techniques. When mancozeb (MNZ) molecules interact with 2D CoTe2, spectroscopic analyses reveal distinctive spectral shifts that clarify the underlying chemical interactions and binding mechanisms. Furthermore, CoTe2's electroactive sites and their manipulation for improved sensitivity and selectivity toward certain MNZ molecules are investigated by electrochemical studies. The CoTe2/GCE electrode exhibits enhanced electrochemical activity toward the electrooxidation of MNZ. The developed sensing electrode shows a linear range from 0.184 mM to 18.48 μM and a limit of detection of about 0.18 μM. In addition, we employ density functional theory (DFT) first-principles calculations to validate the experimental findings and comprehend the mechanism behind the interaction between CoTe2 and MNZ molecules. The study highlights the effectiveness of 2D CoTe2 as a dual-mode sensing platform for qualitative and quantitative assessment of MNZ pollutants, demonstrated by the integration of electrochemistry and spectroscopy and the critical role that 2D CoTe2-based sensors can play in accurate and efficient pesticide detection, which is required for agricultural safety protocols and environmental monitoring.
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Affiliation(s)
- Surbhi Slathia
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Bruno Ipaves
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - Caique Campos de Oliveira
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - Solomon Demiss Negedu
- School of Materials Science and Engineering, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box: 26 Bahir Dar, 6000, Ethiopia
| | - Suman Sarkar
- Department of Materials Engineering, Indian Institute of Technology Jammu, Jammu 181121, India
| | - Pedro A S Autreto
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - Chandra Sekhar Tiwary
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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3
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Chen Y, Wang X, Liu H, Yang J, Feng D, Hou K, Wang X, Wu W. A dual-optical sensor for mancozeb by UCNP@PVP@MnO 2 nanozyme. Food Chem 2023; 409:135255. [PMID: 36586268 DOI: 10.1016/j.foodchem.2022.135255] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
In this work, a fluorescence/colorimetric dual-mode detection method based on MnO2 nanoflower-decorated upconversion nanoparticles: NaYF4:Yb/Er@polyvinylpyrrolidone@MnO2 (UCNP@PVP@MnO2) was proposed to detect the presence of mancozeb (MB). In this detection system, the MnO2 nanoflowers in the nanocomplex of UCNP@PVP@MnO2 would quench the fluorescence of the UCNP. With the addition of H2O2 and 3,3',5,5'-tetramethylbenzidine (TMB), the reaction between MnO2 and H2O2 resulted in the dissolution of MnO2 and the dissolution of the MnO2 layer contributed to the fluorescence recovery of UCNP. Simultaneously, MnO2 oxidized the colorless TMB to a blue product oxidized 3,3',5,5'-tetramethylbenzidine (oxTMB). The blue solution was able to quench the recovered fluorescence of UCNP due to the fluorescence inter filter effect (IFE) between the UCNP and blue oxTMB. Finally, with the addition of MB, the oxTMB was reduced to TMB by MB and the color of the solution became lighter while the fluorescence intensity of the solution increased. The detection method had a good linear range of 5-120 μM and 0.5-60 μM for fluorescence and colorimetric detection, respectively, and the limits of detection (LOD) were 2.34 and 0.245 μM, respectively.
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Affiliation(s)
- Yinyin Chen
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xini Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Hong Liu
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Jianqing Yang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; College of Science, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Dongju Feng
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Kai Hou
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xianxiang Wang
- College of Science, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Wei Wu
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
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Almeida EMF, De Souza D. Current electroanalytical approaches in the carbamates and dithiocarbamates determination. Food Chem 2023; 417:135900. [PMID: 36944296 DOI: 10.1016/j.foodchem.2023.135900] [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: 07/18/2022] [Revised: 02/16/2023] [Accepted: 03/06/2023] [Indexed: 03/17/2023]
Abstract
Pesticides are a suitable tool for controlling plagues and disease vectors. However, their inappropriate use allows for contamination of the environment, soil, water, and foods. Carbamates and dithiocarbamates pesticides present accumulative effects in the human body resulting in hormonal, neurological and reproductive disorders, and some are still suspected or proven to give carcinogenic or mutagenic effects. This review provides a current electroanalytical approach in the carbamates and dithiocarbamates determination, showing the use of voltammetric techniques such as amperometry, cyclic and linear scan, differential pulse, and square wave voltammetry, indicating their advantages, disadvantages, and perspectives in electroanalytical detection of carbamates and dithiocarbamates in natural water and foods. Also are reported the different materials used in the preparation of working electrodes since their choice has an important impact on the success of the analytical applications, resulting in suitable sensitivity, selectivity, stability, and robustness.
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Affiliation(s)
- Elis Marina Fonseca Almeida
- 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.
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5
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Han M, Wang Y, Xiang G, Chen Y, Yang Z, Li Y, Zhang Y, Lu C, Wang X. Construction of ratiometric fluorescence determination of ethylene thiourea in foods based on the nanocomposite combining with sulfur quantum dots and gold clusters. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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6
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Patil VK, Wagh UB, Phalak RP, Bhirud JD, Narkhede HP. A novel validated simple derivatization liquid chromatographic method with diode array detection for the simultaneous determination of mancozeb, azoxystrobin and difenoconazole in pesticide dosage form. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:907-920. [PMID: 35166733 DOI: 10.1039/d1ay01926k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A novel, rapid and simple reverse-phase high performance liquid chromatography (RP-HPLC) method for the simultaneous determination of three pesticides - mancozeb, azoxystrobin and difenoconazole by derivatization with ethyl iodide is presented. Analysis was performed on a C18 column (Agilent Eclipse plus, 150 mm × 4.6 mm; 5 μ) with the mobile phase consisting of acetonitrile + methanol (90 + 10 v/v) - water (0.1% v/v trifluoroacetic acid) (60 : 40, v/v) pumped isocratically at a flow rate of 1.0 mL min-1 and detection wavelength of 205 nm and 272 nm. The factors affecting the derivatization reaction and separation conditions were carefully evaluated and optimized. The method was linear over the concentration range of 3.50 mg L-1 to 31.48 mg L-1 for mancozeb, 0.32 mg L-1 to 2.85 mg L-1 for azoxystrobin and 0.32 mg L-1 to 2.89 mg L-1 for difenoconazole. The new method was successfully applied for the analysis of mancozeb, azoxystrobin and difenoconazole in the pesticide formulation with range recoveries of 99.46% to 100.76%, 99.07% to 101.09% and 98.59% to 101.59%, respectively. The present method is suitable and favorable for the simultaneous separation and analysis of tertiary mixture analytes on account of its sensitivity, rapidity and cost-effectiveness. In addition, it could have excellent application prospects for the simultaneous determination of all three pesticides in other formulated products.
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Affiliation(s)
- Vilas K Patil
- D. D. N. Bhole College, Bhusawal, Dist.-Jalgaon, Maharashtra-425201, India.
| | - Ujwala B Wagh
- Jain Irrigation Systems Limited, Jalgaon, Maharashtra-425001, India
| | - Raju P Phalak
- D. D. N. Bhole College, Bhusawal, Dist.-Jalgaon, Maharashtra-425201, India
| | | | - Hemant P Narkhede
- Smt. P. K. Kotecha Mahila Mahavidyalaya, Bhusawal, Dist.-Jalgaon, Maharashtra-425201, India.
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Buledi JA, Mahar N, Mallah A, Solangi AR, Palabiyik IM, Qambrani N, Karimi F, Vasseghian Y, Karimi-Maleh H. Electrochemical quantification of mancozeb through tungsten oxide/reduced graphene oxide nanocomposite: A potential method for environmental remediation. Food Chem Toxicol 2022; 161:112843. [DOI: 10.1016/j.fct.2022.112843] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/18/2022] [Accepted: 01/26/2022] [Indexed: 12/13/2022]
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8
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Caiel da Silva R, Wickert C, Pizzutti IR, de Kok A. Clean-up Strategy for Dithiocarbamate Fungicide Determination in Soybean by GC-ITD-MS and GC-PFPD: Method Development and Validation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11485-11493. [PMID: 34547203 DOI: 10.1021/acs.jafc.1c01870] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Food matrices consist of many components with different physical and chemical properties that may influence instrumental robustness. The soybean contains fatty coextractives which may have a deleterious effect on the gas chromatography (GC) system. In this study, the efficiencies of PSA, C18OH, C18, silica, aluminum oxide, and Florisil, as dSPE clean-up sorbents, were evaluated by the high-performance liquid chromatography (HPLC) diode-array detector and evaporative light-scattering detector analysis. The dithiocarbamates in soybean samples are determined as CS2 using acidic hydrolysis and isooctane partitioning, followed by GC-PFPD and GC-ITD-MS analyses. The linearity of the analytical curves, the instrument limit of detection matrix effects, the trueness and precision, and the method limit of quantification (LOQ) were assessed in the validation study. Milled soybean was spiked with thiram solution at three concentration levels (corresponding to 0.05, 0.1, and 0.5 mg CS2 kg-1) for recovery determination. Silica appeared to be an effective and cheap sorbent to remove coextracted matrix components without causing any CS2 losses. Recoveries were in the range of 68-91%, with relative standard deviations ≤ 8.7%. The method LOQ was 0.05 mg CS2 kg-1, and both GC-ITD-MS and GC-PFPD systems appeared to be appropriate and complementary to determine dithiocarbamate residues in soybean extracts.
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Affiliation(s)
- Rosselei Caiel da Silva
- Chemistry Department, Center of Research and Analysis of Residues and Contaminants (CEPARC), UFSM - Federal University of Santa Maria, Campus Camobi 97105-900 Santa Maria-RS, Brazil
- National Reference Laboratory (NRL) for Pesticide Residues in Food and Feed, NVWA - Netherlands Food and Consumer Product Safety Authority, Wageningen 6708, The Netherlands
| | - Cristine Wickert
- Chemistry Department, Center of Research and Analysis of Residues and Contaminants (CEPARC), UFSM - Federal University of Santa Maria, Campus Camobi 97105-900 Santa Maria-RS, Brazil
- National Reference Laboratory (NRL) for Pesticide Residues in Food and Feed, NVWA - Netherlands Food and Consumer Product Safety Authority, Wageningen 6708, The Netherlands
| | - Ionara Regina Pizzutti
- Chemistry Department, Center of Research and Analysis of Residues and Contaminants (CEPARC), UFSM - Federal University of Santa Maria, Campus Camobi 97105-900 Santa Maria-RS, Brazil
| | - André de Kok
- National Reference Laboratory (NRL) for Pesticide Residues in Food and Feed, NVWA - Netherlands Food and Consumer Product Safety Authority, Wageningen 6708, The Netherlands
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Advances in the Detection of Dithiocarbamate Fungicides: Opportunities for Biosensors. BIOSENSORS-BASEL 2020; 11:bios11010012. [PMID: 33396914 PMCID: PMC7824625 DOI: 10.3390/bios11010012] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/24/2020] [Accepted: 12/27/2020] [Indexed: 12/21/2022]
Abstract
Dithiocarbamate fungicides (DTFs) are widely used to control various fungal diseases in crops and ornamental plants. Maximum residual limits in the order of ppb-ppm are currently imposed by legislation to prevent toxicity problems associated with excessive use of DTFs. The specific analytical determination of DTFs is complicated by their low solubility in water and organic solvents. This review summarizes the current analytical procedures used for the analysis of DTF, including chromatography, spectroscopy, and sensor-based methods and discusses the challenges related to selectivity, sensitivity, and sample preparation. Biosensors based on enzymatic inhibition demonstrated potential as analytical tools for DTFs and warrant further research, considering novel enzymes from extremophilic sources. Meanwhile, Raman spectroscopy and various sensors appear very promising, provided the selectivity issues are solved.
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Mejía Marchena R, Maturana Córdoba A, Gomez Cerón D, Quintero Monroy C, Arismendy Montes L, Cardenas Perez C. Reuse of manganese sulfate as raw material by recovery from pesticide's wastewater using nanofiltration and electro-electrodialysis: process simulation and analysis from actual data. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:315-329. [PMID: 32941173 DOI: 10.2166/wst.2020.179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Reuse of wastewater, as well as recovery of valuable, toxic or harmful products in industrial discharges, still represents an important issue, not only because it reduces the effect on receiving water bodies, but also because of the economic resources it represents for industry itself. In this research, in situ regeneration of Mn2SO4 is evaluated, for its reuse as the main raw material in the original process of a fungicide plant. The regeneration is evaluated by selective recovery of Mn2+, Zn2+ and SO4 = present in the wastewater produced by the industrial plant, and utilizing nanofiltration, electro-electrodialysis and chemical precipitation as separation alternatives. Each alternative was designed and evaluated technically and economically through simulations in Aspen Plus®, with data and information of the real process supplied by the company. Because zinc concentration is relatively low, its selective recovery was not attractive. The resulting Mn2SO4 solution and treated water quality in conventional alternatives were significantly poor with high costs. In contrast, nanofiltration and electro-electrodialysis alternatives generate water and by-products of higher quality and reuse potential with significantly lower costs. However, their viability depends on the membrane performance. The results were satisfactory, but future experimental studies are required to optimize the alternatives and define the correct pretreatment process.
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Affiliation(s)
- Ricardo Mejía Marchena
- Instituto de Estudios Hidráulicos y Ambientales-IDEHA, Universidad del Norte, km 5 vía a Puerto Colombia, Barranquilla, Colombia E-mail:
| | - Aymer Maturana Córdoba
- Instituto de Estudios Hidráulicos y Ambientales-IDEHA, Universidad del Norte, km 5 vía a Puerto Colombia, Barranquilla, Colombia E-mail: ; Instituto de Desarrollo Sostenible-IDS, Departamento de ingeniería Civil y Ambiental, Universidad del Norte, km 5 vía a Puerto Colombia, Barranquilla, Colombia
| | - Diego Gomez Cerón
- Grupo de Investigación en Robótica y Sistemas Inteligentes, Departamento de ingeniería Eléctrica y electrónica, Universidad del Norte, km 5 vía a Puerto Colombia, Barranquilla, Colombia
| | - Christian Quintero Monroy
- Grupo de Investigación en Robótica y Sistemas Inteligentes, Departamento de ingeniería Eléctrica y electrónica, Universidad del Norte, km 5 vía a Puerto Colombia, Barranquilla, Colombia
| | - Luis Arismendy Montes
- Grupo de Investigación en Robótica y Sistemas Inteligentes, Departamento de ingeniería Eléctrica y electrónica, Universidad del Norte, km 5 vía a Puerto Colombia, Barranquilla, Colombia
| | - Carlos Cardenas Perez
- Grupo de Investigación en Robótica y Sistemas Inteligentes, Departamento de ingeniería Eléctrica y electrónica, Universidad del Norte, km 5 vía a Puerto Colombia, Barranquilla, Colombia
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Oliveira TM, Ribeiro FW, Sousa CP, Salazar-Banda GR, de Lima-Neto P, Correia AN, Morais S. Current overview and perspectives on carbon-based (bio)sensors for carbamate pesticides electroanalysis. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115779] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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12
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Nageswara Rao T, Cheedarala RK. Determination of Dithiocarbamate Mancozeb Residues in Milk Samples Using GC-MS Method. ACTA ACUST UNITED AC 2020. [DOI: 10.1080/22297928.2019.1710563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Tentu. Nageswara Rao
- School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam, Republic of Korea
| | - Ravi Kumar Cheedarala
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
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Electrochemical Characterization of Mancozeb Degradation for Wastewater Treatment Using a Sensor Based on Poly (3,4-ethylenedioxythiophene) (PEDOT) Modified with Carbon Nanotubes and Gold Nanoparticles. Polymers (Basel) 2019; 11:polym11091449. [PMID: 31487849 PMCID: PMC6780876 DOI: 10.3390/polym11091449] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/18/2019] [Accepted: 08/30/2019] [Indexed: 01/03/2023] Open
Abstract
Mancozeb is a worldwide fungicide used on a large scale in agriculture. The active component and its main metabolite, ethylene thiourea, has been related to health issues. Robust, fast, and reliable methodologies to quantify its presence in water are of great importance for environmental and health reasons. The electrochemical evaluation of mancozeb using a low-cost electrochemical electrode modified with poly (3,4-ethylene dioxythiophene), multi-walled carbon nanotubes, and gold nanoparticles is a novel strategy to provide an in-situ response for water pollution from agriculture. Additionally, the thermal-, electrochemical-, and photo-degradation of mancozeb and the production of ethylene thiourea under controlled conditions were evaluated in this research. The mancozeb solutions were characterized by electrochemical oxidation and ultraviolet-visible spectrophotometry, and the ethylene thiourea concentration was measured using ultra-high-performance liquid chromatography high-resolution mass spectrometry. The degradation study of mancozeb may provide routes for treatment in wastewater treatment plants. Therefore, a low-cost electrochemical electrode was fabricated to detect mancozeb in water with a robust electrochemical response in the linear range as well as a quick response at a reduced volume. Hence, our novel modified electrode provides a potential technique to be used in environmental monitoring for pesticide detection.
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14
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Tavakoli M, Hajimahmoodi M, Shemirani F, Dezfuli AS, Khanavi M. Application of Fe3O4/RGO Nanocomposite as a Sorbent of Pesticides. Chromatographia 2017. [DOI: 10.1007/s10337-017-3361-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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15
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Kumar S, Karfa P, Patra S, Madhuri R, Sharma PK. Molecularly imprinted star polymer-modified superparamagnetic iron oxide nanoparticle for trace level sensing and separation of mancozeb. RSC Adv 2016. [DOI: 10.1039/c6ra03204d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Molecular imprinted star polymer for the sensing and separation of mancozeb (pesticide) from soil and vegetable samples.
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Affiliation(s)
- Sunil Kumar
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad
- India
| | - Paramita Karfa
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad
- India
| | - Santanu Patra
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad
- India
| | - Rashmi Madhuri
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad
- India
| | - Prashant K. Sharma
- Functional Nanomaterials Research Laboratory
- Department of Applied Physics
- Indian School of Mines
- Dhanbad
- India
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