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Pratiwi R, Ramadhanti SP, Amatulloh A, Megantara S, Subra L. Recent Advances in the Determination of Veterinary Drug Residues in Food. Foods 2023; 12:3422. [PMID: 37761131 PMCID: PMC10527676 DOI: 10.3390/foods12183422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/04/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
The presence of drug residues in food products has become a growing concern because of the adverse health risks and regulatory implications. Drug residues in food refer to the presence of pharmaceutical compounds or their metabolites in products such as meat, fish, eggs, poultry and ready-to-eat foods, which are intended for human consumption. These residues can come from the use of drugs in the field of veterinary medicine, such as antibiotics, antiparasitic agents, growth promoters and other veterinary drugs given to livestock and aquaculture with the aim of providing them as prophylaxis, therapy and for promoting growth. Various analytical techniques are used for this purpose to control the maximum residue limit. Compliance with the maximum residue limit is very important for food manufacturers according to the Food and Drug Administration (FDA) or European Union (EU) regulations. Effective monitoring and control of drug residues in food requires continuous advances in analytical techniques. Few studies have been reviewed on sample extraction and preparation techniques as well as challenges and future directions for the determination of veterinary drug residues in food. This current review focuses on the overview of regulations, classifications and types of food, as well as the latest analytical methods that have been used in recent years (2020-2023) for the determination of drug residues in food so that appropriate methods and accurate results can be used. The results show that chromatography is still a widely used technique for the determination of drug residue in food. Other approaches have been developed including immunoassay, biosensors, electrophoresis and molecular-based methods. This review provides a new development method that has been used to control veterinary drug residue limit in food.
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Affiliation(s)
- Rimadani Pratiwi
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (S.P.R.); (A.A.); (S.M.)
| | - Shinta Permata Ramadhanti
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (S.P.R.); (A.A.); (S.M.)
| | - Asyifa Amatulloh
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (S.P.R.); (A.A.); (S.M.)
| | - Sandra Megantara
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (S.P.R.); (A.A.); (S.M.)
| | - Laila Subra
- Faculty of Bioeconomic, Food and Health Sciences, University of Geomatika Malaysia, Kuala Lumpur 54200, Malaysia;
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Krebs F, Zagst H, Stein M, Ratih R, Minkner R, Olabi M, Hartung S, Scheller C, Lapizco-Encinas BH, Sänger-van de Griend C, García CD, Wätzig H. Strategies for capillary electrophoresis: Method development and validation for pharmaceutical and biological applications-Updated and completely revised edition. Electrophoresis 2023; 44:1279-1341. [PMID: 37537327 DOI: 10.1002/elps.202300158] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 07/19/2023] [Indexed: 08/05/2023]
Abstract
This review is in support of the development of selective, precise, fast, and validated capillary electrophoresis (CE) methods. It follows up a similar article from 1998, Wätzig H, Degenhardt M, Kunkel A. "Strategies for capillary electrophoresis: method development and validation for pharmaceutical and biological applications," pointing out which fundamentals are still valid and at the same time showing the enormous achievements in the last 25 years. The structures of both reviews are widely similar, in order to facilitate their simultaneous use. Focusing on pharmaceutical and biological applications, the successful use of CE is now demonstrated by more than 600 carefully selected references. Many of those are recent reviews; therefore, a significant overview about the field is provided. There are extra sections about sample pretreatment related to CE and microchip CE, and a completely revised section about method development for protein analytes and biomolecules in general. The general strategies for method development are summed up with regard to selectivity, efficiency, precision, analysis time, limit of detection, sample pretreatment requirements, and validation.
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Affiliation(s)
- Finja Krebs
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Holger Zagst
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Matthias Stein
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Ratih Ratih
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Surabaya, Surabaya, East Java, Indonesia
| | - Robert Minkner
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Mais Olabi
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Sophie Hartung
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Christin Scheller
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
| | - Blanca H Lapizco-Encinas
- Department of Biomedical Engineering, Kate Gleason College of Engineering, Rochester Institute of Technology, Rochester, New York, USA
| | - Cari Sänger-van de Griend
- Kantisto BV, Baarn, The Netherlands
- Department of Medicinal Chemistry, Faculty of Pharmacy, Uppsala Universitet, Uppsala, Sweden
| | - Carlos D García
- Department of Chemistry, Clemson University, Clemson, South Carolina, USA
| | - Hermann Wätzig
- Institute, of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Lower Saxony, Germany
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Muungani G, van Zyl WE. A CaCuSi 4O 10/GCE electrochemical sensor for detection of norfloxacin in pharmaceutical formulations. RSC Adv 2023; 13:12799-12808. [PMID: 37114019 PMCID: PMC10126821 DOI: 10.1039/d3ra01702h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
This study reports on a calcium copper tetrasilicate (CaCuSi4O10)/glassy carbon electrode (GCE) electrochemical sensor developed for rapid sensing and quantification of an antibacterial drug, norfloxacin, using both cyclic voltammetry and differential pulse voltammetry. The sensor was fabricated by modifying a glassy carbon electrode with the CaCuSi4O10. Electrochemical impedance spectroscopy was performed and the Nyquist plot showed that the CaCuSi4O10/GCE had a lower charge transfer resistance of 22.1 Ω cm2 compared to the GCE with a charge transfer resistance of 43.5 Ω cm2. Differential pulse voltammetry showed that the optimum pH for the electrochemical detection of norfloxacin in potassium phosphate buffer solution (PBS) electrolyte was pH 4.5 and an irreversible oxidative peak was found at 1.067 V. Two linear ranges were established at 0.01 to 0.55 μM and 0.55 μM to 82.1 μM, and the limit of detection was ca. 0.0046 μM. We further demonstrated that the electrochemical oxidation was controlled by both diffusion and adsorption processes. The sensor was investigated in the presence of interferents and was found to be selective toward norfloxacin. The pharmaceutical drug analysis was done to establish method reliability and a significantly low standard deviation of 2.3% was achieved. The results suggest that the sensor can be applied in the detection of norfloxacin.
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Affiliation(s)
- Gregarious Muungani
- School of Chemistry and Physics, University of KwaZulu-Natal Westville Campus Durban 4000 South Africa +27 31 260 3199
| | - Werner E van Zyl
- School of Chemistry and Physics, University of KwaZulu-Natal Westville Campus Durban 4000 South Africa +27 31 260 3199
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Xu S, Li L, Lin D, Yang L, Wang Z, Jiang C. Rare-earth ions coordination enhanced ratiometric fluorescent sensing platform for quantitative visual analysis of antibiotic residues in real samples. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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KITAGAWA F, SOMA Y. Recent Applications of Dynamic On-Line Sample Preconcentration Techniques in Capillary Electrophoresis. CHROMATOGRAPHY 2022. [DOI: 10.15583/jpchrom.2022.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fumihiko KITAGAWA
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University
| | - Yuta SOMA
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University
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Electrochemical detection of aminoglycoside antibiotics residuals in milk based on magnetic molecularly imprinted particles and metal ions. Food Chem 2022; 389:133120. [DOI: 10.1016/j.foodchem.2022.133120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 03/29/2022] [Accepted: 04/27/2022] [Indexed: 12/20/2022]
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Qiu X, Gu J, Yang T, Ma C, Li L, Wu Y, Zhu C, Gao H, Yang Z, Wang Z, Li X, Hu A, Xu J, Zhong L, Shen J, Huang A, Chen G. Sensitive determination of Norfloxacin in milk based on β-cyclodextrin functionalized silver nanoparticles SERS substrate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 276:121212. [PMID: 35413530 DOI: 10.1016/j.saa.2022.121212] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/21/2022] [Accepted: 03/26/2022] [Indexed: 06/14/2023]
Abstract
The norfloxacin (NFX) residue in milk will increase human resistance to drugs and pose a threat to public health. In this work, a highly sensitive method for detection of NFX was developed based on surface enhanced Raman spectroscopy (SERS) using β-cyclodextrin functionalized silver nanoparticles (β-CD-AgNPs) as substrate. The unique spatial size and hydrophilicity of β-CD on the surface of AgNPs could selectively capture the target molecule (NFX) through some weak interactions, including hydrogen-bond interaction, electrostatic interaction, etc. The interactions were characterized by the UV-Vis absorption spectroscopy, fluorescence spectroscopy, Zeta potential and DLS. The Raman signal of NFX is largely enhanced when anchored by β-CD on the surface of AgNPs due to SERS effect. Through a series of experiments and analysis, the limit of detection (LOD) in standard solution and spiked milk were calculated to be 3.214 pmol/L and 5.327 nmol/L. The correlation coefficients (R2) were 0.986 and 0.984, respectively. For milk sample determination of NFX, the recovery was 101.29% to 104.00% with the relative standard deviation (RSD) from 2.986% to 9.136%. To sum up, this developed SERS strategy is sensitive and specific to detect NFX in milk, it has practical application value and prospects.
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Affiliation(s)
- Xiaoqian Qiu
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Jiao Gu
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Taiqun Yang
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Chaoqun Ma
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Lei Li
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Yamin Wu
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Chun Zhu
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Hui Gao
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Zichen Yang
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China; School of Internet of Things Engineering, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China
| | - Zirui Wang
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Xiaolin Li
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Anqi Hu
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Jinzeng Xu
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Lvyuan Zhong
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Jialu Shen
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Anlan Huang
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China
| | - Guoqing Chen
- School of Science, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China; Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, 214122 Wuxi, China.
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8
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Yang X, He L, Xu Z. Pressure-assisted electrokinetic injection for the stacking of biogenic amines gives enhancement factor up to 1000 in CE with UV detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1782-1787. [PMID: 35475508 DOI: 10.1039/d2ay00430e] [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
Pressure-assisted electrokinetic injection (PAEKI) was applied for stacking of positively charged biogenic amines (BAs) to improve the sensitivity of capillary electrophoresis (CE). It is well known that the essential step for PAEKI is finding a stationary state of the running buffer such that the movement of the running buffer due to electroosmotic flow (EOF) is counterbalanced by external pressure in the opposite direction of the EOF under a given electric field. In order to find the balance point systematically and integrally, we studied the velocity of the whole BGE in the capillary by the impetus of opposite direction pressure (-0.1 to -0.6 psi), and the velocity of EOF with different voltages. According to the two sets of linear data, the EOF of CE coupled with PAEKI could be counterbalanced at the opposite direction pressure (-0.1 psi) and voltage (7.8 kV). In this study, the injection time was extended up to 0.35 min for all BAs and 0.70 min for the direct ultraviolet (UV) detection of BAs. Compared with hydrodynamic injection (HDI), the enrichment factors for sample injection times of 0.35 min and 0.70 min were 480-fold and 970-fold, respectively. The limits of detection (LODs) (S/N = 3) of indirect and direct UV detection were respectively 8.7-24.3 nmol L-1 and 0.4-4.5 nmol L-1, which reaches the sensitivity of high-performance liquid chromatography-mass spectrophotometry (HPLC-MS). With appropriate sample dilution, PAEKI can be used in the analysis of BAs in chicken.
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Affiliation(s)
- Xue Yang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Lili He
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Zhongqi Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
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9
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Gu YX, Yan TC, Yue ZX, Liu FM, Cao J, Ye LH. Recent developments and applications in the microextraction and separation technology of harmful substances in a complex matrix. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Zhou J, Xu Z. Simultaneous separation of 12 different classes of antibiotics under the condition of complete protonation by capillary electrophoresis-coupled contactless conductivity detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:174-179. [PMID: 34935007 DOI: 10.1039/d1ay01838h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A novel capillary electrophoresis - capacitively coupled contactless conductivity detection (CE-C4D) method for the separation of 12 antibiotics, including four types of aminoglycosides, three types of fluoroquinolones, two types of tetracyclines, and three types of macrolides, was developed. Half of these antibiotics were not determined by ultraviolet (UV) because of their lack of UV-absorbing groups. Formic acid (FA) (pH 2.50) with low conductivity was employed as the background electrolyte (BGE) in comparison with three BGE systems (i.e., HAc, HCl and H3PO4), which not only allowed complete protonation and electrophoresis separation but provided more cost-effectiveness and shorter analysis time. Under these conditions, a UV detector was employed as an additional detection mode to evaluate the qualitative analysis of 6 antibiotics possessing UV absorbing groups. Moreover, it was found that the sensitivities of the C4D and UV detectors were similar. Albeit a slightly reduced sensitivity of C4D in the analysis of norfloxacin, enrofloxacin and tylosin compared to UV, enough points were achieved to detect all analytes by C4D. The repeatability with respect to peak areas and migration times was better than 4.69% and 2.48% (n = 5), respectively. Mixed liquid pharmaceutical formulations of tobramycin eye drops having non-UV absorbing groups and ofloxacin eye drops possessing UV absorbing groups have been separated and detected in a single run by this technique. The studied recoveries of the two were 100% and 103%, respectively.
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Affiliation(s)
- Jianjing Zhou
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
| | - Zhongqi Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
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Semail NF, Abdul Keyon AS, Saad B, Kamaruzaman S, Mohamad Zain NN, Lim V, Miskam M, Wan Abdullah WN, Yahaya N, Chen DDY. Simultaneous preconcentration and determination of sulfonamide antibiotics in milk and yoghurt by dynamic pH junction focusing coupled with capillary electrophoresis. Talanta 2022; 236:122833. [PMID: 34635223 DOI: 10.1016/j.talanta.2021.122833] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 10/20/2022]
Abstract
A dynamic pH junction was used in capillary electrophoresis (CE-DAD) to on-line preconcentrate, separate, and determine trace amounts of sulfonamide antibiotics (SAs) in milk and yoghurt samples in this study. A sample matrix with 0.15% acetic acid and 10% methanol (MeOH) at a pH of 4.0, and a background electrolyte (BGE) that contained 35 mM sodium citrate with 10% MeOH at a pH of 8.5, and an acidic barrage of 0.4% acetic acid with 10% MeOH at a pH of 2.5 were utilised to achieve a stacking effect for SAs through a dynamic pH junction. Under optimised conditions, the proposed preconcentration method showed good linearity (30-500 ng/mL, r2 ≥ 0.9940), low limits of detection (LODs) of 4.1-6.3 ng/mL, and acceptable analytes recovery (81.2-106.9%) with relative standard deviations (RSDs) within 5.3-13.7 (n = 9). The limits of quantification (LOQs) were below the maximum residue limit approved by the European Union (EU) in this type of matrices. Sensitivity enhancement factors of up to 129 were reached with the optimised dynamic pH junction using CE with a diode array detector (DAD). The method was used to determine SAs in fresh milk, low-fat milk, full-cream milk, and yoghurt samples.
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Affiliation(s)
- Nadhiratul-Farihin Semail
- Integrative Medicine Clusters, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Penang, Malaysia
| | - Aemi Syazwani Abdul Keyon
- Department of Chemistry, Faculty of Science and Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Johor, Malaysia
| | - Bahruddin Saad
- Fundamental & Applied Sciences Department, Universiti Teknologi PETRONAS, 32601, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Sazlinda Kamaruzaman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor Darul Ehsan, Malaysia
| | - Nur Nadhirah Mohamad Zain
- Integrative Medicine Clusters, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Penang, Malaysia
| | - Vuanghao Lim
- Integrative Medicine Clusters, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Penang, Malaysia
| | - Mazidatulakmam Miskam
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, USM Pulau Pinang, Malaysia
| | | | - Noorfatimah Yahaya
- Integrative Medicine Clusters, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Penang, Malaysia.
| | - David D Y Chen
- Department of Chemistry, University of British Columbia, Vancouver, V6T 1Z1, Canada.
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Liu HF, Ye-Tao, Qin XH, Chao-Chen, Huang FP, Zhang XQ, Bian HD. Three-fold interpenetrated metal–organic framework as a multifunctional fluorescent probe for detecting 2,4,6-trinitrophenol, levofloxacin, and l-cystine. CrystEngComm 2022. [DOI: 10.1039/d1ce01590g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A robust Zn(ii) MOF with good chemical and thermal stability, was prepared as an effective fluorescent probe for 2,4,6-trinitrophenol (TNP), levofloxacin (LVX) and l-cystine (l-Cys) with recyclability.
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Affiliation(s)
- Han-Fu Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Ye-Tao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Xiao-Huan Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Chao-Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Fu-Ping Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Xiu-Qing Zhang
- College of Chemistry and Bioengineering, Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, Guilin University of Technology, Guilin, P.R. China
| | - He-Dong Bian
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning, 530008, P. R. China
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13
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Tian C, Ren X, He M, Chen B, Hu B. Core-shell magnetic porous organic polymer for magnetic solid-phase extraction of fluoroquinolone antibiotics in honey samples followed by high-performance liquid chromatography with fluorescence detection. J Sep Sci 2021; 45:874-882. [PMID: 34882983 DOI: 10.1002/jssc.202100678] [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: 08/26/2021] [Revised: 11/27/2021] [Accepted: 12/02/2021] [Indexed: 11/12/2022]
Abstract
By monomer-mediated in-situ growth synthesis strategy, with hydroquinone and 1,3,5-tris(4-aminophenyl)benzene as monomers, a core-shell magnetic porous organic polymer was synthesized through a simple azo reaction. Based on this, a magnetic solid-phase extraction-high-performance liquid chromatography-fluorescence detection method was proposed for the analysis of fluoroquinolones in a honey sample. With ofloxacin, ciprofloxacin, enrofloxacin, lomefloxacin, and difloxacin as target analytes, factors affecting the extraction efficiency had been optimized. The LODs were 1.5-5.4 ng/L (corresponding to 0.23-0.81 μg/kg in honey). The linear range was 0.005-20 μg/L for difloxacin, 0.01-20 μg/L for ofloxacin, ciprofloxacin and lomefloxacin, and 0.02-20 μg/L for enrofloxacin. The enrichment factor was 84.4-91.7-fold with a high extraction efficiency of 84.4-91.7%. The method was assessed by the analysis of target fluoroquinolones in honey samples, and the recoveries for the spiked samples were 79.3-95.8%. The results indicated that the established magnetic solid-phase extraction-high-performance liquid chromatography-fluorescence detection method is efficient for the analysis of trace fluoroquinolones in honey.
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Affiliation(s)
- Cong Tian
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P. R. China
| | - Xue Ren
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P. R. China
| | - Man He
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P. R. China
| | - Beibei Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P. R. China
| | - Bin Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P. R. China
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Hu M, Liang G, Chen K, Zhu L, Xu M, Wang M, Li J, He L, Zhang Z, Du M. Conjugated bimetallic cobalt/iron polyphthalocyanine as an electrochemical aptasensing platform for impedimetric determination of enrofloxacin in diverse environments. Mikrochim Acta 2021; 188:432. [PMID: 34822036 DOI: 10.1007/s00604-021-05086-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/31/2021] [Indexed: 12/13/2022]
Abstract
The synthesis of bimetallic cobalt/iron polyphthalocyanine (represented by polyCoFePc) network via a modified solid-phase synthesis method is described. It was exploited as a platform for anchoring enrofloxacin (ENR)-targeted aptamer strands, thus, fabricating a label-free impedimetric aptasensor for determination of ENR. The polyCoFePc exhibited a porous two-dimensional (2D) conjugated nanostructure and rich functional groups, and showed a superior binding interaction toward aptamer strands as compared to monometallic polyFePc and polyCoPc networks. This finding was attributed to structural defects and increased active binding sites, thereby giving a highly sensitive detection ability toward ENR. By using electrochemical impedance spectroscopy (EIS), the polyCoFePc-based electrochemical aptasensor exhibited an extremely low detection limit of 0.06 fg mL-1 within the ENR concentration from 0.1 fg mL-1 to 100 pg mL-1, along with high selectivity, good reproducibility, and remarkable stability. Interestingly, the constructed polyCoFePc-based aptasensor also demonstrated wide practicability in various environments. The recoveries of ENR spiked into river water, milk, and pork samples ranged within 91.2 - 107.2%, 90.5 - 109.6%, and 91.2 - 102.3%, respectively.
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Affiliation(s)
- Min Hu
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Gaolei Liang
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Kun Chen
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Lei Zhu
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Miaoran Xu
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Minghua Wang
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Junguang Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Linghao He
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China
| | - Zhihong Zhang
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China.
| | - Miao Du
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, People's Republic of China.
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15
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A review of green solvent extraction techniques and their use in antibiotic residue analysis. J Pharm Biomed Anal 2021; 209:114487. [PMID: 34864593 DOI: 10.1016/j.jpba.2021.114487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 11/03/2021] [Accepted: 11/19/2021] [Indexed: 12/31/2022]
Abstract
Antibiotic residues are being continuously recognized in the aquatic environment and in food. Though the concentration of antibiotic residues is typically low, adverse effects on the environment and human health have been observed. Hence, an efficient method to determine numerous antibiotic residues should be simple, inexpensive, selective, with high throughput and with low detection limits. Liquid-based extractions have been exceedingly used for clean-up and preconcentration of antibiotics prior to chromatographic analysis. In order to make methods more green and environmentally sustainable, conventional hazardous organic solvents can be replaced with green solvents. This review presents sampling strategies as well as comprehensive and up-to-date methods for chemical analysis of antibiotic residues in different sample matrices. Particularly, solvent-based sample preparation techniques using green solvents are discussed along with applications in antibiotic residue analysis.
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16
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Gao S, Hao J, Su D, Wu T, Gao J, Hu G. Facile and sensitive detection of norfloxacin in animal-derived foods using immuno-personal glucose meter. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03825-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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Abstract
Antibiotics, nowadays, are not only used for the treatment of human diseases but also used in animal and poultry farming to increase production. Overuse of antibiotics leads to their circulation in the food chain due to unmanaged discharge. These circulating antibiotics and their residues are a major cause of antimicrobial resistance (AMR), so comprehensive and multifaceted measures aligning with the One Health approach are crucial to curb the emergence and dissemination of antibiotic resistance through the food chain. Different chromatographic techniques and capillary electrophoresis (CE) are being widely used for the separation and detection of antibiotics and their residues from food samples. However, the matrix present in food samples interferes with the proper detection of the antibiotics, which are present in trace concentrations. This review is focused on the scientific literature published in the last decade devoted to the detection of antibiotics in food products. Various extraction methods are employed for the enrichment of antibiotics from a wide variety of food samples; however, solid-phase extraction (SPE) techniques are often used for the extraction of antibiotics from food products and biological samples. In addition, this review has scrutinized how changing instrumental composition, organization, and working parameters in the chromatography and CE can greatly impact the identification and quantification of antibiotic residues. This review also summarized recent advancements in other detection methods such as immunological assays, surface-enhanced Raman spectroscopy (SERS)-based assays, and biosensors which have emerged as rapid, sensitive, and selective tools for accurate detection and quantification of traces of antibiotics.
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18
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Physical–chemical and antimicrobial activity of sulfadiazine sodium salt with β-cyclodextrin supramolecular systems. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01626-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Cong Z, Song Z, Ma Y, Zhu M, Zhang Y, Wu S, Gao E. Highly Emissive Metal-Organic Frameworks for Sensitive and Selective Detection of Nitrofuran and Quinolone Antibiotics. Chem Asian J 2021; 16:1773-1779. [PMID: 33945232 DOI: 10.1002/asia.202100352] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/02/2021] [Indexed: 02/06/2023]
Abstract
The overuse of antibiotics makes its detection very significant for human health. New facile methods and high-performance sensory materials will be urgently needed for detection of antibiotics. Unfortunately, there are few reports on fluorescence enhancement of antibiotics detection. Herein, based on the modulability of the coordination mode, we proposed two MOFs with different coordination modes based on different metal ions: Zn-MOF (1) and Cd-MOF (2). The fluorescence of 1 and 2 can be efficiently and selectively quenched by nitrofuran antibiotics (nitrofurazone, NFZ and furazolidone, FZD) and chloramphenicol (CAP), respectively. Particularly, the matched energy levels between 2 and enrofloxacin (ENR) enables 2 with turn-on sensing for ENR. Moreover, apart from the sensitivity and selectivity, 1 and 2 also have strong recyclable ability, fast response time and anti-interference ability, which make them great potential sensory materials to detect antibiotics.
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Affiliation(s)
- Zhenzhong Cong
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, P. R. China
| | - Zhenfeng Song
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, P. R. China
| | - Yunxiao Ma
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, P. R. China
| | - Mingchang Zhu
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, P. R. China
| | - Ying Zhang
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, P. R. China
| | - Shuangyan Wu
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, P. R. China
| | - Enjun Gao
- The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, P. R. China.,University of Science and Technology Liaoning, Anshan, Liaoning, 114051, P. R. China
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20
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Zhou S, Lu L, Liu D, Wang J, Sakiyama H, Muddassir M, Nezamzadeh-Ejhieh A, Liu J. Series of highly stable Cd( ii)-based MOFs as sensitive and selective sensors for detection of nitrofuran antibiotic. CrystEngComm 2021. [DOI: 10.1039/d1ce01264a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The oxygen atom of the MOF ether-bridging group acts as a Lewis base site, improving the connection and allowing the detection of 10 antibiotics through the fluorescence quenching effect.
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Affiliation(s)
- Shanhe Zhou
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, PR China
| | - Lu Lu
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, PR China
| | - Dong Liu
- Shenzhen Huachuang Bio-Pharmaceutical Technology Co. Ltd., Shenzhen, 518112, Guangdong, China
| | - Jun Wang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, PR China
| | - Hiroshi Sakiyama
- Department of Science, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa, Yamagata 990-8560, Japan
| | - Mohd. Muddassir
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Jianqiang Liu
- Key Laboratory of Research and Development of New Medical Materials of Guangdong, Guangdong Medical University, Dongguan, 523808, China
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21
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A molecularly imprinted polymer combined with dual functional Au@Fe3O4 nanocomposites for sensitive detection of kanamycin. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114216] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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22
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Qin G, Wang J, Li L, Yuan F, Zha Q, Bai W, Ni Y. Highly water-stable Cd-MOF/Tb 3+ ultrathin fluorescence nanosheets for ultrasensitive and selective detection of Cefixime. Talanta 2020; 221:121421. [PMID: 33076058 DOI: 10.1016/j.talanta.2020.121421] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/07/2020] [Accepted: 07/14/2020] [Indexed: 02/02/2023]
Abstract
Two-dimensional Cd-MOF/Tb3+ (Cd-MOF = [Cd (μ-2,3-pdc) (H2O)3]n (2,3-pdc = 2,3-pyridine dicarboxylic acid)) fluorescent nanosheets with the thickness of 1.4 nm were successfully synthesized by a simple solution route with subsequent ultrasonic exfoliation at room temperature. It was found that as-obtained Cd-MOF/Tb3+ ultrathin nanosheets could be homogeneously dispersed in aqueous system to form a sol with excellent stability. Also, the fluorescence intensity of nanosheets remarkably increased to almost 12 times higher than that of Cd-MOF/Tb3+ microsheets before exfoliation. Further investigations uncovered that the above strong fluorescence of Cd-MOF/Tb3+ nanosheets could be highly sensitively quenched by Cefixime antibiotic in aqueous solution without interference from other antibiotics, amino acids and pesticides. Hence, the as-obtained ultrathin Cd-MOF/Tb3+ nanosheets could be prepared as a highly selective and sensitive fluorescence probe for the detection of Cefixime in aqueous system. Compared with the bulk Cd-MOF/Tb3+ sensor, the Cd-MOF/Tb3+ ultrathin nanosheets sensor exhibited a far lower detection limit down to 26.7 nM for CFX. Also, the as-obtained nanosheets sensor presented satisfactory recovery ranging from 98.07% to 103.01% and acceptable repeatability (RSD < 6.29%, n = 6) for the detection of CFX in domestic water. Furthermore, the sensing mechanism studies revealed that the high selection of the present fluorescent probe for detection of CFX should be attributed to the cooperation of the photoinduced electron transfer and the inner filter effect.
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Affiliation(s)
- Guoxu Qin
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu, 241002, PR China; College of Chemistry and Materials Engineering, Chaohu University, Bantang Road, Chaohu, 238000, PR China
| | - Jing Wang
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu, 241002, PR China
| | - Lei Li
- College of Chemistry and Materials Engineering, Chaohu University, Bantang Road, Chaohu, 238000, PR China
| | - Feifei Yuan
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu, 241002, PR China
| | - Qingqing Zha
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu, 241002, PR China
| | - Wenbo Bai
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu, 241002, PR China
| | - Yonghong Ni
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu, 241002, PR China.
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23
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Yang S, Ma S, Zhu K, Wang M, Li J, Arabi M, Liu H, Li Y, Chen L. Simultaneous enrichment/determination of six sulfonamides in animal husbandry products and environmental waters by pressure-assisted electrokinetic injection coupled with capillary zone electrophoresis. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103462] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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24
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Huo F, Wan T, Wang Y, Liu Y, Karmaker PG, Yang X. Enhanced light-emitting diode induced fluorescence detection system with capillary electrophoresis. J Chromatogr A 2020; 1619:460935. [PMID: 32067761 DOI: 10.1016/j.chroma.2020.460935] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/11/2019] [Accepted: 01/29/2020] [Indexed: 11/26/2022]
Abstract
An enhanced fluorescence detection system of capillary electrophoresis (CE) was equipped with a concave silver mirror, by which the detection sensitivity of light-emitting diode induced fluorescence (LEDIF) can be increased greatly. The silver concave mirror and the cathode window in photomultiplier tube (PMT) were accurately set face to face at the same axis. When the two labeled tumor markers exactly moved to the center of detection window, the emission from analytes are excitated by LED source. Currently, the analytes may be regarded as a luminescent source point. When the source point exactly moves to the focus of the concave mirror, the emission of the labeled sample was collected effectively, enhanced by convergence and reflected by the concave mirror. Then it was sensitively detected by the PMT. The optical mechanism of enhancing detection sensitivity was explored. A simple comparative test on sensitivity was carried out, which aimed to compare sensitivity of the new detection system with concave mirror to that without concave mirror but the other conditions were kept the same. Two tumor markers labeled with FITC were selected for the test, using the simple LEDIF detect system. The results (LOD, 150 nM for L-Leu and L-Val) showed that the detection sensitivity matched with concave mirror reached more 16 times than the detection method without concave mirror.
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Affiliation(s)
- Feng Huo
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro&Nano Intelligent Sensing, Neijiang Normal University, Neijiang, 641100, PR China; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, PR China
| | - Ting Wan
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro&Nano Intelligent Sensing, Neijiang Normal University, Neijiang, 641100, PR China; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, PR China
| | - Yaohui Wang
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro&Nano Intelligent Sensing, Neijiang Normal University, Neijiang, 641100, PR China
| | - Yuhang Liu
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro&Nano Intelligent Sensing, Neijiang Normal University, Neijiang, 641100, PR China; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, PR China
| | - Pran Gopal Karmaker
- School of Chemistry and Chemical Engineering, Analytical Testing Center, Institute of Micro&Nano Intelligent Sensing, Neijiang Normal University, Neijiang, 641100, PR China
| | - Xiupei Yang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637000, PR China.
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25
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Advances in the Analysis of Veterinary Drug Residues in Food Matrices by Capillary Electrophoresis Techniques. Molecules 2019; 24:molecules24244617. [PMID: 31861089 PMCID: PMC6943715 DOI: 10.3390/molecules24244617] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/13/2019] [Accepted: 12/14/2019] [Indexed: 12/03/2022] Open
Abstract
In the last years, the European Commission has adopted restrictive directives on food quality and safety in order to protect animal and human health. Veterinary drugs represent an important risk and the need to have sensitive and fast analytical techniques to detect and quantify them has become mandatory. Over the years, the availability of different modes, interfaces, and formats has improved the versatility, sensitivity, and speed of capillary electrophoresis (CE) techniques. Thus, CE represents a powerful tool for the analysis of a large variety of food matrices and food-related molecules with important applications in food quality and safety. This review focuses the attention of CE applications over the last decade on the detection of different classes of drugs (used as additives in animal food or present as contaminants in food products) with a potential risk for animal and human health. In addition, considering that the different sample preparation procedures have strongly contributed to CE sensitivity and versatility, the most advanced sample pre-concentration techniques are discussed here.
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26
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Determination of Trace Sulfonamides in Environmental Water and Milk Through Capillary Electrochromatography Using PEG-MoS2 as Stationary Phase. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01676-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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