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Sun Q, Zhang S, Chen Q, Cao L. Salting-out assisted liquid-liquid extraction for the simple and rapid determination of veterinary antibiotic residues in aquatic products by HPLC-MS/MS. Food Chem 2024; 460:140775. [PMID: 39121764 DOI: 10.1016/j.foodchem.2024.140775] [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: 02/09/2024] [Revised: 07/15/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024]
Abstract
Based on salting-out assisted liquid-liquid extraction (SALLE) and high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS), a simple, rapid pretreatment without complex clean-up for the determination of 22 veterinary drug residues in aquatic products was developed and validated. In order to improve the efficiency of the method, the key procedural parameters of SALLE were fabricated. Na2EDTA-Mcllvaine buffer/ACN was used as the extraction solvent, anhydrous MgSO4 and NaCl as the extraction salts. The relationship between extraction efficiency and logD was initially evaluated during the optimization process. This study was well validated in various aquatic samples such as bass, large yellow croaker, carp, and shrimp, the limits of detection (LOD) and accuracy for all compounds ranged from 0.5 to 1.0 μg/kg, 71.4% to 120%. This method has the advantages of rapidity, simplicity, low cost, and high efficiency, and has broad potential for risk monitoring and evaluation of veterinary antibiotics in aquatic products.
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Affiliation(s)
- Qifan Sun
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, 1299 Sansha Rd. Qingdao, China
| | - Shaoen Zhang
- China-Hangzhou Nankairixin Biotechnology Co.,Ltd, 481 Minhe Rd, Xiaoshan, Hangzhou,China
| | - Qingzhou Chen
- China-Hangzhou Nankairixin Biotechnology Co.,Ltd, 481 Minhe Rd, Xiaoshan, Hangzhou,China
| | - Limin Cao
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, 1299 Sansha Rd. Qingdao, China.
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2
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Multiresidues Multiclass Analytical Methods for Determination of Antibiotics in Animal Origin Food: A Critical Analysis. Antibiotics (Basel) 2023; 12:antibiotics12020202. [PMID: 36830113 PMCID: PMC9952001 DOI: 10.3390/antibiotics12020202] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 01/21/2023] Open
Abstract
Veterinary drugs are widely used to prevent and treat diseases. The European Union has forbidden the use of antibiotics as growth promoters since 2006. Its abusive use leads to the presence of antibiotic residues (AR) in foods of animal origin which is associated with antibiotic resistance. The monitoring of AR in food intended for human consumption is of utmost importance to assure Food Safety. A systematic bibliographic review was carried out on the analytical methodologies, published in 2013, for the determination of AR in foods of animal origin. The food processing effect in the AR detected in animal products is also addressed. However, there is a preference for multiresidues multiclass methods, i.e., methodologies that allow determining simultaneously different classes of antibiotics, which is still a challenge for researchers. The wide diversity of physico-chemical properties of these drugs is an obstacle to achieving excellent analytical performance for a vast number of molecules analyzed concurrently. New techniques in sample preparation continue to be developed in order to obtain a compromise between good recoveries and extracts without interferences (clean extracts). The most widely used analytical methodology for the determination of AR is liquid chromatography coupled with mass spectrometry. However, the current trend is focused on the use of powerful high-resolution MS detectors such as Time of Flight and Orbitrap with modern chromatographic systems. Cooking time and temperature control are the key processing conditions influencing the reduction of AR in foods.
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3
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Fast and highly efficient liquid chromatographic methods for qualification and quantification of antibiotic residues from environmental waste. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Liu Y, Wang S, Pan J, Zhu F, Wu M, Xu G. Antibiotics in urine of the general population: Exposure, health risk assessment, and food factors. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 57:1-12. [PMID: 34933642 DOI: 10.1080/03601234.2021.2017211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Diet is known to be one of the main sources from which human intake many environmental contaminants, for example, antibiotics. To determine the effect of dietary factors on antibiotic intake, we identified the levels of antibiotics present in the urine of the general population from two regions of Shanghai. Moreover, we assessed the amount of exposure to these substances and the health risks they posed. There were a total of 18 antibiotics, which were sorted into five categories. Based on the above, we used the Food Frequency Questionnaire (FFQ) and demographic data to evaluate the effects of food consumption and demographic factors on levels of the antibiotics in urine. The results found that food sourced from animals had a direct relation to the level of veterinary antibiotics or preferred veterinary antibiotics (VAs/PVAs) detected in urine. Those who regularly consumed, for example, meat, milk and eggs, had considerably more VAs/PVAs in their urine compared to those who didn't. These results demonstrated that animal-derived foods are the main causes of unintentional exposure to antibiotics in human. Our study, therefore, evidenced that more attention must be paid to the residues of unneeded VAs/PVAs derived from animal-sourced food.
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Affiliation(s)
- Yujie Liu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai, P. R. China
| | - Siqi Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Jiali Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Feng Zhu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Minghong Wu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai, P. R. China
| | - Gang Xu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai, P. R. China
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5
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Cai T, Zhou Y, Liu H, Li J, Wang X, Zhao S, Gong B. Preparation of monodisperse, restricted-access, media-molecularly imprinted polymers using bi-functional monomers for solid-phase extraction of sarafloxacin from complex samples. J Chromatogr A 2021; 1642:462009. [PMID: 33721811 DOI: 10.1016/j.chroma.2021.462009] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/30/2021] [Accepted: 02/14/2021] [Indexed: 12/24/2022]
Abstract
Monodisperse restricted-access media bi-functional monomers with molecularly imprinted polymers (RAM-MIPs) were constructed using surface-initiated atom transfer radical polymerization. They were used as solid-phase extraction (SPE) adsorbents to enrich sarafloxacin (SAR) residues from egg samples, and influences on their performance were investigated. Optimum synthesis of RAM-MIPs was achieved by combining a bi-functional monomer (4-vinylpyridine-co-methacrylic acid, 1:3) with an 8:1:32:8 ratio of a template molecule, cross-linker, and restricted-access functional monomer. The SAR imprinting factor of RAM-MIPs was 6.05 and the selectivity coefficient between SAR and other fluoroquinolones was 1.86-2.64. Compared with traditional MIPs, the RAM-MIPs showed better SAR enrichment and selectivity during extraction of a complex protein-containing solution. Empty SPE cartridges were filled with RAM-MIP microspheres as SPE adsorbents. The limit of quantitation for SAR was 4.23 ng g-1 (signal-to-noise ratio = 10) and the mean SAR recovery from spiked egg samples was 94.0-101.3%. Intra-day and inter-day relative standard deviations were 1.1-9% and 1.5-3.3%, respectively.
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Affiliation(s)
- Tianpei Cai
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, PR China
| | - Yanqiang Zhou
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, PR China
| | - Huachun Liu
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, PR China
| | - Jianmin Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, PR China
| | - Xiaoxiao Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, PR China
| | - Shanwen Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, PR China
| | - Bolin Gong
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, 750021, PR China.
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6
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Moga A, Vergara-Barberán M, Lerma-García MJ, Carrasco-Correa EJ, Herrero-Martínez JM, Simó-Alfonso EF. Determination of antibiotics in meat samples using analytical methodologies: A review. Compr Rev Food Sci Food Saf 2021; 20:1681-1716. [PMID: 33522137 DOI: 10.1111/1541-4337.12702] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 01/01/2023]
Abstract
Antibiotics are widely used to prevent or treat some diseases in human and veterinary medicine and also as animal growth promoters. The presence of these compounds in foods derived from food-producing animals can be a risk for human health. Consequently, regulatory agencies have set maximum residue limits for antibiotics in food samples. Therefore, the development of novel methodologies for its determination in food samples is required. Specifically, the analysis and quantification of these substances in meat tissues is a challenge for the analytical chemistry research community. This is due to the complexity of the matrix and the low detection limits required by the regulatory agencies. In this sense, a comprehensive review on the development of new sample preparation treatments involving extraction, cleanup, and enrichment steps of antibiotics in meat samples in combination with sensitive and sophisticated determination techniques that have been carry out in the last years is necessary. Therefore, the aim of this work is to summarize the published methodologies for the determination of antibiotics from 2016 until the beginning of the second semester of 2020. The first part of this review includes an introduction about antibiotic families, followed by sample preparation and determination techniques applied to the different families. Finally, a detailed discussion of the current trends and the future possible perspectives in this field are also included.
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Affiliation(s)
- Ancuta Moga
- Department of Analytical Chemistry, Burjassot, University of Valencia, Valencia, Spain
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7
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Ramos-Payán M, Ocaña-González JA, Fernández-Torres R, Bello-López MÁ. A Method for the Determination of Veterinary Drugs from Different Therapeutic Classes in Animal Urine. J Chromatogr Sci 2020; 58:127-135. [PMID: 32154562 DOI: 10.1093/chromsci/bmz084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 07/29/2019] [Accepted: 09/10/2019] [Indexed: 11/15/2022]
Abstract
A rapid, precise and robust HPLC separation procedure has been developed and optimized for the determination of a series of drugs of different therapeutic classes: chlortetracycline, oxitetracycline, cefoperazone, diclofenac, tiamphenicol, marbofloxacin, ciprofloxacin, danofloxacin, enrofloxacin and flumequine. The chromatographic method used a monolithic C18 column and both diode array and fluorescence detection. This procedure was validated for the analysis of drugs in cow urine, using a simple and fast procedure with methanol/acetonitrile, allowing the simultaneous and efficient extraction of most of the studied drugs. The proposed method was successfully applied to the determination of enrofloxacin in cow urine, collected after the administration of this antibiotic.
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Affiliation(s)
- María Ramos-Payán
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad de Sevilla, c/Prof. García González s/n, 41012 Seville, Spain
| | - Juan Antonio Ocaña-González
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad de Sevilla, c/Prof. García González s/n, 41012 Seville, Spain
| | - Rut Fernández-Torres
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad de Sevilla, c/Prof. García González s/n, 41012 Seville, Spain
| | - Miguel Ángel Bello-López
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad de Sevilla, c/Prof. García González s/n, 41012 Seville, Spain
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8
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Liang S, Jian N, Cao J, Zhang H, Li J, Xu Q, Wang C. Rapid, simple and green solid phase extraction based on polyaniline nanofibers-mat for detecting non-steroidal anti-inflammatory drug residues in animal-origin food. Food Chem 2020; 328:127097. [DOI: 10.1016/j.foodchem.2020.127097] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 05/11/2020] [Accepted: 05/17/2020] [Indexed: 12/01/2022]
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9
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Xie X, Huang S, Zheng J, Ouyang G. Trends in sensitive detection and rapid removal of sulfonamides: A review. J Sep Sci 2020; 43:1634-1652. [PMID: 32043724 DOI: 10.1002/jssc.201901341] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 12/15/2022]
Abstract
Sulfonamides in environmental water, food, and feed are a major concern for both aquatic ecosystems and public health, because they may lead to the health risk of drug resistance. Thus, numerous sensitive detection and rapid removal methodologies have been established. This review summarizes the sample preparation techniques and instrumental methods used for sensitive detection of sulfonamides. Additionally, adsorption and photocatalysis for the rapid removal of sulfonamides are also discussed. This review provides a comprehensive perspective on future sulfonamide analyses that have good performance, and on the basic methods for the rapid removal of sulfonamides.
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Affiliation(s)
- Xintong Xie
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, P. R. China
| | - Shuyao Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, P. R. China
| | - Juan Zheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, P. R. China
| | - Gangfeng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, P. R. China
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10
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Peris-Vicente J, García-Ferrer D, Mishra P, Albiol-Chiva J, Durgbanshi A, Carda-Broch S, Bose D, Esteve-Romero J. Procedure for the Screening of Eggs and Egg Products to Detect Oxolonic Acid, Ciprofloxacin, Enrofloxacin, and Sarafloxacin Using Micellar Liquid Chromatography. Antibiotics (Basel) 2019; 8:antibiotics8040226. [PMID: 31731615 PMCID: PMC6963619 DOI: 10.3390/antibiotics8040226] [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: 10/22/2019] [Revised: 11/05/2019] [Accepted: 11/12/2019] [Indexed: 02/01/2023] Open
Abstract
A method based on micellar liquid chromatography was developed to determine oxolinic acid, ciprofloxacin, enrofloxacin, and sarafloxacin in eggs and egg products. The antimicrobial drugs were obtained in a micellar solution which was directly injected. The analytes were resolved using a C18 column and a mobile phase of 0.05 M sodium dodecyl sulfate—7.5% 1-propanol—0.5% triethylamine, buffered at pH 3 with phosphate salt, running under the isocratic mode. The signal was monitored by fluorescence. Validation was successfully performed according to the EU Commission Decision 2002/657/EC in terms of specificity, calibration range (LOQ to 1 mg/kg), linearity (R2 > 0.9991), limit of detection and decision limit (0.01–0.05 mg/kg), limit of quantification (0.025–0.150 mg/kg), detection capability (<0.4 times decision limit), trueness (−14.2% to +9.8%), precision (<14.0%), robustness, and stability. The procedure was environmentally friendly, safe, easy-to-conduct, inexpensive, and had a high sample throughput, thus it is useful for routine analysis as a screening method in a laboratory for food residue control.
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Affiliation(s)
- Juan Peris-Vicente
- Department of Analytical Chemistry, Faculty of Chemistry, Universitat de València, 46100 Burjassot, Spain; (J.P.-V.); (D.G.-F.)
| | - Daniel García-Ferrer
- Department of Analytical Chemistry, Faculty of Chemistry, Universitat de València, 46100 Burjassot, Spain; (J.P.-V.); (D.G.-F.)
- Laboratory of Clinical Analysis, General University Hospital of de Castelló, 12004 Castelló, Spain
| | - Pooja Mishra
- Department of Chemistry, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Madhya Pradesh 470003, India; (P.M.); (A.D.)
| | - Jaume Albiol-Chiva
- Bioanalytical Chemistrya, Department of Physical and Analytical Chemistrya, ESTCE, Universitat Jaume I, 12071 Castelló, Spain; (J.A.-C.); (S.C.-B.)
| | - Abhilasha Durgbanshi
- Department of Chemistry, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Madhya Pradesh 470003, India; (P.M.); (A.D.)
| | - Samuel Carda-Broch
- Bioanalytical Chemistrya, Department of Physical and Analytical Chemistrya, ESTCE, Universitat Jaume I, 12071 Castelló, Spain; (J.A.-C.); (S.C.-B.)
| | - Devasish Bose
- Department of Criminology and Forensic Science, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Madhya Pradesh 470003, India;
| | - Josep Esteve-Romero
- Bioanalytical Chemistrya, Department of Physical and Analytical Chemistrya, ESTCE, Universitat Jaume I, 12071 Castelló, Spain; (J.A.-C.); (S.C.-B.)
- Correspondence:
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Chen J, Ying GG, Deng WJ. Antibiotic Residues in Food: Extraction, Analysis, and Human Health Concerns. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7569-7586. [PMID: 31198037 DOI: 10.1021/acs.jafc.9b01334] [Citation(s) in RCA: 210] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The abundant use of antibiotics leads to antibiotic residues in frequently consumed foods. Residual antibiotics in food may have adverse effects on humans by directly causing disease via low-dose exposure and indirect harm via antibiotic resistance. However, the current methods for antibiotic extraction and analysis in food have not yet formed a uniform standard, and only a few data exist regarding the residual antibiotic condition in various types of foods. Hence, we review the literature since 2008 to summarize analytical methods and residue status of antibiotics in food. Then, we discuss the causes of antibiotic residues in food and the possible hazards to human health. We hope that the joint efforts of the scientific community and political circles will lead to the formation of a unified standard for the extraction and analysis of antibiotics in food, to allow for comprehensive monitoring of residual antibiotics and ensure human health.
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Affiliation(s)
- Jun Chen
- Department of Science and Environmental Studies , The Education University of Hong Kong , Tai Po , New Territories , Hong Kong Special Administrative Region, People's Republic of China
- The Environmental Research Institute, Ministry of Education (MOE) Key Laboratory of Environmental Theoretical Chemistry , South China Normal University , Guangzhou , Guangdong 510006 , People's Republic of China
| | - Guang-Guo Ying
- The Environmental Research Institute, Ministry of Education (MOE) Key Laboratory of Environmental Theoretical Chemistry , South China Normal University , Guangzhou , Guangdong 510006 , People's Republic of China
| | - Wen-Jing Deng
- Department of Science and Environmental Studies , The Education University of Hong Kong , Tai Po , New Territories , Hong Kong Special Administrative Region, People's Republic of China
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Rosende M, Prieto A, Etxebarria N, Martorell G, Miró M. Automatic Mesofluidic System Combining Dynamic Gastrointestinal Bioaccessibility with Lab-on-Valve-Based Sorptive Microextraction for Risk Exposure of Organic Emerging Contaminants in Filter-Feeding Organisms. Anal Chem 2019; 91:5739-5746. [DOI: 10.1021/acs.analchem.8b05870] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- María Rosende
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa, km 7.5, 07122 Palma de Mallorca, Spain
| | - Ailette Prieto
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Basque Country, Spain
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia, Basque Country, Spain
| | - Nestor Etxebarria
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Basque Country, Spain
- Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Areatza z/g, 48620 Plentzia, Basque Country, Spain
| | - Gabriel Martorell
- Serveis Cientificotècnics, University of the Balearic Islands, Carretera de Valldemossa, km 7.5, 07122 Palma de Mallorca, Spain
| | - Manuel Miró
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa, km 7.5, 07122 Palma de Mallorca, Spain
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Ma X, Li S, Pang C, Xiong Y, Li J. A Cu(II)-anchored unzipped covalent triazine framework with peroxidase-mimicking properties for molecular imprinting-based electrochemiluminescent detection of sulfaquinoxaline. Mikrochim Acta 2018; 185:546. [PMID: 30426279 DOI: 10.1007/s00604-018-3079-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/31/2018] [Indexed: 10/27/2022]
Abstract
The authors describe a method of electrochemiluminescent quantitation of the antibiotic sulfaquinoxaline (SQX). It relies on the use of a molecularly imprinted polymer and a Cu(II)-anchored unzipped covalent triazine framework (UnZ-CCTF) with excellent dispersibility, electrical conductivity, and peroxidaze-like activity. The framework was prepared by unzipping a covalent triazine framework under retention of basic triazine units. It was morphologically and structurally characterized by a range of instrumental techniques. The excellent peroxidase-mimicking effect of UnZ-CCTF on the electrochemiluminescence of the luminol/H2O2 system was exploited to design an ultrasensitive SQX assay with a 1.0-20 pM detection range and a detection limit of 0.76 pM (at 3δ/m). The technique was used for SQX quantitation in spiked milk samples, achieving recoveries of 94.0-104.8%. Graphical abstract Scheme of the sulfaquinoxaline molecularly imprinted electrochemiluminescence sensor based on Cu-anchored unzipped covalent triazine frameworks.
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Affiliation(s)
- Xionghui Ma
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China. .,Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China.
| | - Shuhuai Li
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.,Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China
| | - Chaohai Pang
- Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.,Laboratory of Quality & Safety Risk Assessment for Tropical Products (Haikou) Ministry of Agriculture, Haikou, 571101, China
| | - Yuhao Xiong
- College of Food and Bioengineering, Hezhou University, Hezhou, 542899, China.
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
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