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Vidal DF, Pires BC, Borges MMC, de Oliveira HL, Silva CF, Borges KB. Magnetic solid-phase extraction based on restricted-access molecularly imprinted polymers for ultrarapid determination of ractopamine residues from food samples by capillary electrophoresis. J Chromatogr A 2024; 1720:464809. [PMID: 38490141 DOI: 10.1016/j.chroma.2024.464809] [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: 12/27/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/17/2024]
Abstract
An ultrafast, efficient, and eco-friendly method combining magnetic solid phase extraction and capillary electrophoresis with diode array detection have been developed to determine ractopamine residues in food samples. A restricted access material based on magnetic and mesoporous molecularly imprinted polymer has been properly synthesized and characterized, demonstrating excellent selectivity and high adsorbent capacity. Short-end injection capillary electrophoresis method was optimized: 75 mM triethylamine pH 7 as BGE, -20 kV, 50 mbar by hydrodynamic injection during 8 s, and capillary temperature at 25 °C; reaching ultrafast ractopamine analysis (∼0.6 min) with good peak asymmetry, and free from interfering and/or baseline noise. After sample preparation optimization, the conditions were: 1000 µL of sample at pH 6, 20 mg of adsorbent, stirring time of 120 s, 250 µL of ultrapure water as washing solvent, 1000 µL of methanol: acetic acid (7: 3, v/v) as eluent, and the adsorbent can be reused four times. In these conditions, the analytical method showed recoveries around to 100 %, linearity ranged from 9.74 to 974.0 µg kg-1, correlation coefficient (r) ≥ 0,99 in addition to adequate precision, accuracy, and robustness. After proper validation, the method was successfully applied in the analysis ractopamine residues in bovine milk and bovine and porcine muscle.
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Affiliation(s)
- Daniel Ferreira Vidal
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, São João del-Rei, Minas Gerais 36301-160, Brazil
| | - Bruna Carneiro Pires
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, São João del-Rei, Minas Gerais 36301-160, Brazil
| | - Marcella Matos Cordeiro Borges
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, São João del-Rei, Minas Gerais 36301-160, Brazil
| | - Hanna Leijoto de Oliveira
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, São João del-Rei, Minas Gerais 36301-160, Brazil
| | - Camilla Fonseca Silva
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, São João del-Rei, Minas Gerais 36301-160, Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, São João del-Rei, Minas Gerais 36301-160, Brazil.
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Vidal DF, Silva CF, Borges MMC, Nascimento CS, Borges KB. Magnetic and mesoporous molecularly imprinted polymer synthesized by rational computation design: Sample preparation and analysis of ractopamine. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1227:123843. [PMID: 37535992 DOI: 10.1016/j.jchromb.2023.123843] [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: 05/22/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023]
Abstract
Through density functional theory calculations was studied theoretically the formation process of a magnetic and mesoporous molecularly imprinted polymer for ractopamine (RAC), evaluating the molecular electrostatic potential map, functional monomers, functional monomer / template stoichiometry and crosslink agents. The results revealed that the best conditions for the synthesis were established with acrylic acid as functional monomer in a 1: 4 stoichiometry using acetonitrile as the solvent and ethylene glycol dimethacrylate as crosslink agent. It was observed that nine hydrogen bonds established between the RAC and acrylic acid play a key role on the pre-polymerization complex. In addition, three analytical methods using HPLC, UHPLC and CE instruments were optimized for rapid analysis. The adsorbent was experimentally synthesized considering the best conditions found at the molecular level and characterized by FTIR, DRX, TGA, SEM, TEM, surface analysis, and wettability. After that, the synthesized material was used in magnetic solid phase extraction combined with capillary electrophoresis in a preliminary RAC recovery study from milk samples. Finally, greenness metric with a score of 0.55 have been obtained for the sample preparation procedure using the online AGREEprep metric.
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Affiliation(s)
- Daniel Ferreira Vidal
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160, São João del-Rei, Minas Gerais, Brazil
| | - Camilla Fonseca Silva
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160, São João del-Rei, Minas Gerais, Brazil
| | - Marcella Matos Cordeiro Borges
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160, São João del-Rei, Minas Gerais, Brazil
| | - Clebio Soares Nascimento
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160, São João del-Rei, Minas Gerais, Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160, São João del-Rei, Minas Gerais, Brazil.
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Terephthalic acid-based magnetic molecularly imprinted polymer for enantioselective capillary electrophoresis determination of atenolol in human plasma. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118257] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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de Oliveira HL, Pires BC, Teixeira LS, Dinali LAF, Simões NS, Borges WDS, Borges KB. Novel restricted access material combined to molecularly imprinted polymer for selective magnetic solid-phase extraction of estrogens from human urine. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104043] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rational selection of the monomer for molecularly imprinted polymer preparation for selective and sensitive detection of 3-methylindole in water. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.10.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Martínez Saavedra LN, Penido RG, de Azevedo Santos L, Ramalho TC, Lobo Baeta BE, Pereira MC, Candido da Silva A. Molecularly imprinted polymers for selective adsorption of quinoline: theoretical and experimental studies. RSC Adv 2018; 8:28775-28786. [PMID: 35542458 PMCID: PMC9084364 DOI: 10.1039/c8ra04261f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 07/26/2018] [Indexed: 11/21/2022] Open
Abstract
The effects of solvent on the synthesis of molecularly imprinted polymers (MIPs) for the selective adsorption of quinoline were evaluated in this work. The MIPs were synthesized by the “bulk” method using the quinoline molecule (IQ) as a template in different solvents, such as toluene (MIPT) and chloroform (MIPC). The adsorbents were characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and N2 adsorption/desorption measurements. The influences of time, adsorbate concentration, and temperature on the adsorption of quinoline by MIPT and MIPC were evaluated. Maximum adsorption capacities (qe) of 35.23 and 24.10 mg g−1 were obtained for MIPT and MIPC, respectively. Thermodynamic studies indicate that occur physisorption and a spontaneous process (ΔadsG° < 0) entropically directed. Finally, the highest selectivity and reusability of MIPC for quinoline adsorption was ascribed to the better interaction between the chloroform and monomer, which favors the formation of porous adsorbents with higher numbers of adsorption sites. Molecularly imprinted polymers synthesized by a one-pot synthesis absorb quinoline efficiently and selectively.![]()
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Affiliation(s)
- Liz Nayibe Martínez Saavedra
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
| | - Ricardo Gonçalves Penido
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
| | | | | | - Bruno E. Lobo Baeta
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
| | - Márcio C. Pereira
- Instituto de Ciência
- Universidade Federal dos Vales do Jequitinhonha e Mucuri
- 39803-371 Teófilo Otoni
- Brazil
| | - Adilson Candido da Silva
- Departamento de Química
- Instituto de Ciências Exatas e Biológicas
- Universidade Federal de Ouro Preto
- 35400-000 Ouro Preto
- Brazil
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Synthesis and characterization of magnetic molecularly imprinted polymer nanoparticles for controlled release of letrozole. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-016-0171-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pan Y, Zhang Q, Li Z, Wang Q, Ren C, Li S, Li H, Zhao Q. Preparation and application of tectoridin-imprinted magnetite nanoparticles. J Appl Polym Sci 2016. [DOI: 10.1002/app.43806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yujin Pan
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Qiuyan Zhang
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Zhenzhen Li
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Qing Wang
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Changjing Ren
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Sai Li
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Hui Li
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Qiang Zhao
- College of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
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Liu W, Qin L, Shi W, Chen L, Yang Y, Liu X, Xu B. Molecularly imprinted polymers on the surface of porous carbon microspheres for capturing dibenzothiophene. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1746-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Pardeshi S, Singh SK. Precipitation polymerization: a versatile tool for preparing molecularly imprinted polymer beads for chromatography applications. RSC Adv 2016. [DOI: 10.1039/c6ra02784a] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Minireview on recent advances of application of MIPs prepared by precipitation polymerization for recognition of target analytes in complex matrices.
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Affiliation(s)
- Sushma Pardeshi
- Department of Forensic Chemistry
- Institute of Forensic Science
- Nagpur-440001
- India
| | - Sunit Kumar Singh
- Environmental Materials Division
- CSIR-National Environmental Engineering and Research Institute
- Nagpur-440020
- India
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Qiu C, Yang W, Zhou Z, Yan Y, Xu W. Rational design and preparation of dibenzothiophene-targeting molecularly imprinted polymers with molecular dynamics approaches and surface-initiated activators regenerated by electron-transfer atom-transfer radical polymerization. J Appl Polym Sci 2015. [DOI: 10.1002/app.42629] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chunxiao Qiu
- School of Material Science and Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Wenming Yang
- School of Material Science and Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Zhiping Zhou
- School of Material Science and Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Yongsheng Yan
- School of Material Science and Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Wanzhen Xu
- School of Material Science and Engineering, Jiangsu University; Zhenjiang 212013 China
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Surface molecularly imprinted polymer prepared by reverse atom transfer radical polymerization for selective adsorption indole. J Appl Polym Sci 2014. [DOI: 10.1002/app.40473] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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