1
|
Elik A, Demirkol Y, Ul Haq H, Boczkaj G, Sanaullah, Altunay N. Development of an orbital shaker-assisted fatty acid-based switchable solvent microextraction procedure for rapid and green extraction of amoxicillin from complex matrices: Central composite design. Food Chem 2024; 454:139785. [PMID: 38823199 DOI: 10.1016/j.foodchem.2024.139785] [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: 12/10/2023] [Revised: 05/01/2024] [Accepted: 05/20/2024] [Indexed: 06/03/2024]
Abstract
In this study, a cheap, fast and simple orbital shaker-assisted fatty acid-based switchable solvent microextraction (OS-FASS-ME) procedure was developed for the extraction of amoxicillin (AMOX) in dairy products, pharmaceutical samples and wastewater prior to its spectrophotometric analysis. Fatty acid-based switchable solvents were investigated for extracting AMOX. The key factors of the OS-FASS-ME procedure were optimized using a central composite design. The linearity of OS-FASS-ME procedure was in the range 5-600 ng mL-1 with a correlation coefficient of 0.991. In five replicate experiments for 20 ng mL-1 of AMOX solution, the recovery and relative standard deviation were 95.8% and 2.2%, respectively. Limits of detection and quantification were found 1.5 ng mL-1 and 5 ng mL-1, respectively. The accuracy, precision, robustness and selectivity of the OS-FASS-ME procedure were investigated in detail under optimum conditions. The OS-FASS-ME procedure was applied to milk, cheese, wastewater, syrups and tablets. A comparison of the results obtained from the reference method and the OS-FASS-ME method showed that the OS-FASS-ME procedure can be successfully applied to complex matrices.
Collapse
Affiliation(s)
- Adil Elik
- Sivas Cumhuriyet University, Faculty of Science, Department of Chemistry, Sivas, Turkey
| | - Yağmur Demirkol
- Sivas Cumhuriyet University, Faculty of Science, Department of Biochemistry, Sivas, Turkey
| | - Hameed Ul Haq
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - Grzegorz Boczkaj
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - Sanaullah
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland
| | - Nail Altunay
- Sivas Cumhuriyet University, Faculty of Science, Department of Chemistry, Sivas, Turkey.
| |
Collapse
|
2
|
Huang Y, Zhang Y, Yu Y, Song X, Huang X. One-pot preparation of magnetic molecularly imprinted adsorbent with dual template molecules for simultaneously specific capture of sulfonamides and quinolones in water and milk samples. Food Chem 2024; 434:137412. [PMID: 37696153 DOI: 10.1016/j.foodchem.2023.137412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/22/2023] [Accepted: 09/03/2023] [Indexed: 09/13/2023]
Abstract
Specific capture is a beneficial tactic in simultaneous monitoring of sulfonamides (SAs) and quinolones (QLs). For this purpose, a new magnetic molecularly imprinted adsorbent based on double-template molecules (DT-MIP@MNA) was facilely prepared by "one-pot" hydrothermal technique and utilized as the adsorbent of magnetic solid-phase extraction (MSPE). Molecular simulation technique was employed to quickly screen functional monomer. The recognition factors of prepared adsorbent towards templates sulfamethazine and nalidixic acid were 5.89 and 2.90, respectively, and the corresponding adsorption capacities were as high as 8.85 mg/g and 8.97 mg/g, respectively. Under the optimized parameters, the proposed DT-MIP@MNA/MSPE was combined with HPLC to simultaneously and selectively monitor trace SAs and QLs residuals in water and milk samples. The achieved limits of detection were 0.012-0.028 μg/L and 0.015-0.032 μg/kg for water and milk samples, respectively. The current supplied a sensitive, reliable and anti-interference method for simultaneously monitoring trace SAs and QLs in food.
Collapse
Affiliation(s)
- Youfang Huang
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Yueyue Zhang
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Yilin Yu
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Xiaochong Song
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Xiaojia Huang
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China.
| |
Collapse
|
3
|
Martello L, Rapti A, Bikiaris DN, Lambropoulou DA. Synthesis and evaluation of a chitosan nanomaterial as efficient sorbent for determination of fungicide residues in waters and wine by liquid chromatography high resolution mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:873-883. [PMID: 38240475 DOI: 10.1039/d3ay02014b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
In the present study a novel, cost-effective, environmentally friendly, and efficient analytical method was developed to analyze fungicide residues in water and wine. The method relies on the application of a newly developed sorbent nanomaterial named Nano-Cs-NAT, synthesized by modifying chitosan, a naturally occurring, low-cost polysaccharide, through grafting with two acrylic monomers and a cross-linker. Nano-Cs-NAT was introduced as analytical sorbent for Dispersive Micro Solid Phase Extraction (D-μ-SPE) before Liquid Chromatography-Orbitrap High-Resolution Mass Spectrometry (LC-Orbitrap HRMS) analysis of twelve fungicides commonly used in viticulture (among the others, triazoles, strobilurines and N-substituted imidazoles). Characterization of the sorbent was conducted, confirming the successful acrylation of chitosan. A multivariate approach was employed to optimize D-μ-SPE extraction parameters. The material was found to be highly effective in simultaneously purifying and concentrating the target analytes, enhancing overall analytical efficiency and sensitivity. The Nano-Cs-NAT-D-μ-SPE-LC-Orbitrap-HRMS method was thoroughly validated, exhibiting good recoveries (72-104%), reproducibility (average RSD ≤ 6%) and repeatability (average RSD ≤ 7%). It also achieved low limits of detection (LOD) in river water (average LOD of 0.04 μg L-1) and wine (average LOD of 0.72 μg kg-1), highlighting its potential for routine fungicide residue analysis. This developed method addresses environmental and food safety concerns by providing an efficient solution for detecting fungicide residues in waters and wine.
Collapse
Affiliation(s)
- Lorenzo Martello
- Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Androniki Rapti
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Dimitra A Lambropoulou
- Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
- Centre for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki, 10th km-Thermi Rd, 57001, Thessaloniki, Greece
| |
Collapse
|
4
|
Xu X, Lv J, Zhou J, Ji B, Yang L, Xu G, Hou Z, Li L, Bai Y. Improved matrix purification using a graphene oxide-coated melamine sponge for UPLC-MS/MS-based determination of 37 veterinary drugs in milks. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:856-863. [PMID: 38240139 DOI: 10.1039/d3ay01797d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
A rapid and highly sensitive method was established for the analysis of 37 veterinary drug residues in milk using a modified QuEChERS method based on a reduced graphene oxide-coated melamine sponge (rGO@MeS) coupled with UPLC-MS/MS. Under optimal chromatographic and mass spectrometric conditions, the effects of different dehydrated salts (MgSO4 and Na2SO4) and metal chelating agents (Na2EDTA) on extraction efficiency were first investigated. Next, the influence of a dynamic and static purification mode was evaluated in terms of drug recoveries. Calibration curves of 37 veterinary drugs were constructed in the range 0.6-500 μg kg-1, and good linearities were obtained with all determination coefficients (R2) ≥0.992. The limits of detection (LODs) and quantitation (LOQs) were in the range 0.3-1.1 μg kg-1 and 0.6-3.5 μg kg-1, respectively. The recoveries of all compounds were in the range 61.3-118.2% at three spiked levels (20, 100, and 200 μg kg-1) with RSDs ≤15.4% for both intra- and inter-day precisions. Compared to pristine melamine sponges and commercial adsorbents (C18, PSA, and GCB), rGO@MeS demonstrated an equal or even better purification performance in terms of recoveries, matrix effects, and matrix removal efficiency. This method is rapid, simple, efficient, and appropriate for the qualitative and quantitative analyses of 37 veterinary drug residues in milk, providing a new detection strategy and technical support for the routine analysis of animal-derived food.
Collapse
Affiliation(s)
- Xu Xu
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
- Henan Key Laboratory of Cold Chain Quality and Safety Control, Zhengzhou, P. R. China
- Collaborative Innovation Center of Food Production and Safety, Henan Province, P. R. China
- Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, Zhengzhou, P. R. China
| | - Jia Lv
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
- Henan Key Laboratory of Cold Chain Quality and Safety Control, Zhengzhou, P. R. China
- Collaborative Innovation Center of Food Production and Safety, Henan Province, P. R. China
- Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, Zhengzhou, P. R. China
| | - Jintian Zhou
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
| | - Baocheng Ji
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
- Henan Key Laboratory of Cold Chain Quality and Safety Control, Zhengzhou, P. R. China
- Collaborative Innovation Center of Food Production and Safety, Henan Province, P. R. China
- Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, Zhengzhou, P. R. China
| | - Lanrui Yang
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
- Henan Key Laboratory of Cold Chain Quality and Safety Control, Zhengzhou, P. R. China
- Collaborative Innovation Center of Food Production and Safety, Henan Province, P. R. China
- Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, Zhengzhou, P. R. China
| | - Gaigai Xu
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
| | - Zhuchen Hou
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
- Henan Key Laboratory of Cold Chain Quality and Safety Control, Zhengzhou, P. R. China
- Collaborative Innovation Center of Food Production and Safety, Henan Province, P. R. China
- Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, Zhengzhou, P. R. China
| | - Lulu Li
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
| | - Yanhong Bai
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China.
- Henan Key Laboratory of Cold Chain Quality and Safety Control, Zhengzhou, P. R. China
- Collaborative Innovation Center of Food Production and Safety, Henan Province, P. R. China
- Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, Zhengzhou, P. R. China
| |
Collapse
|
5
|
Garcinuño RM, Collado EJ, Paniagua G, Bravo JC, Fernández Hernando P. Assessment of Molecularly Imprinted Polymers as Selective Solid-Phase Extraction Sorbents for the Detection of Cloxacillin in Drinking and River Water. Polymers (Basel) 2023; 15:4314. [PMID: 37959993 PMCID: PMC10648835 DOI: 10.3390/polym15214314] [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: 09/29/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
This paper describes a new methodology for carrying out quantitative extraction of cloxacillin from drinking and river water samples using a molecularly imprinted polymer (MIP) as a selective sorbent for solid-phase extraction (MISPE). Several polymers were synthesized via thermal polymerization using cloxacillin as a template, methacrylic acid (MAA) as a functional monomer, ethyleneglycoldimethacrylate (EGDMA) as a cross-linker and different solvents as porogens. Binding characteristics of the adequate molecularly imprinted and non-imprinted (NIP) polymers were evaluated via batch adsorption assays following the Langmuir and Freundlich isotherms and Scatchard assays. The parameters related to the extraction approach were studied to select the most appropriate polymer for cloxacillin determination. Using the optimized MIP as the SPE sorbent, a simple sample treatment methodology was combined with high-performance liquid chromatography (HPLC) to analyze cloxacillin residues in drinking and river water. Under the optimum experimental conditions, the MISPE methodology was validated using spiked samples. The linearity for cloxacillin was assessed within the limits of 0.05-1.5 µg L-1 and the recovery percentage was higher than 98% (RSD < 4%). The limits of detection and limits of quantification were 0.29 and 0.37 µg L-1 and 0.8 and 0.98 µg L-1 for drinking and river water, respectively. The selectivity of MIP against other ß-lactam antibiotics with similar structures (oxacillin, cefazoline, amoxicillin and penicillin V) was studied, obtaining a good recovery higher than 85% for all except cefazoline. The proposed MISPE-HPLC methodology was successfully applied for the detection of cloxacillin in drinking water from Canal de Isabel II (Madrid) and river water from the Manzanares River (Madrid).
Collapse
Affiliation(s)
- Rosa Mª Garcinuño
- Department of Analytical Science, Faculty of Science, Universidad Nacional de Educación a Distancia, Las Rozas, 28232 Madrid, Spain; (E.J.C.); (G.P.); (J.C.B.); (P.F.H.)
| | | | | | | | | |
Collapse
|
6
|
Tantawy MA, Yehia AM, Elbalkiny HT. All-solid-state chip utilizing molecular imprinted polymer for erythromycin detection in milk samples: Printed circuit board-based potentiometric system. Mikrochim Acta 2023; 190:408. [PMID: 37733266 PMCID: PMC10514120 DOI: 10.1007/s00604-023-05959-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/20/2023] [Indexed: 09/22/2023]
Abstract
Detection of erythromycin (ERY) residues in commercial milk samples is crucial for the safety assessment. Herein, a printed circuit board was patterned as a feasible miniaturized potentiometric sensor for ERY determination in dairy samples. The proposed chip design fits to a 3.5-mm female audio plug to facilitate the potential measurements of working electrode versus reference one in this all-solid-state system. The sensor utilizes molecular imprinted polymer (MIP) for the selective recognition of the studied drug in such challenging matrix. The electrode stability is achieved through the addition of poly (3,4-ethylenedioxythiophene) nano-dispersion on its surface. The proposed device detects down to 6.6 × 10-8 M ERY with a slope of 51 mV/decade in the 1 × 10-7-1 × 10-3 M range. The results display high accuracy (99.9% ± 2.6) with satisfactory relative standard deviation for repeatability (1.6%) and reproducibility (5.0%). The effect of common antibiotic classes, namely, amphenicols, beta-lactams, fluoroquinolones, sulfonamides, and tetracyclines, can be neglected as evidenced by their calculated binding capacities towards the proposed MIP. The calculated selectivity coefficients also show a good electrode performance in the presence of naturally present inorganic ions allowing its application to different milk samples.
Collapse
Affiliation(s)
- Mahmoud A Tantawy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr-El Aini St, Cairo, 11562, Egypt.
- Chemistry Department, Faculty of Pharmacy, October 6 University, 6 October City, Giza, Egypt.
| | - Ali M Yehia
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr-El Aini St, Cairo, 11562, Egypt
- School of Life and Medical Sciences, University of Hertfordshire Hosted By Global Academic Foundation, New Capital, Garden City, Cairo, R5 New, Egypt
| | - Heba T Elbalkiny
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts, 6th October City, 11787, Egypt
| |
Collapse
|
7
|
Koloka O, Koulama M, Hela D, Albanis T, Konstantinou I. Determination of Multiclass Pharmaceutical Residues in Milk Using Modified QuEChERS and Liquid-Chromatography-Hybrid Linear Ion Trap/Orbitrap Mass Spectrometry: Comparison of Clean-Up Approaches and Validation Studies. Molecules 2023; 28:6130. [PMID: 37630381 PMCID: PMC10515318 DOI: 10.3390/molecules28166130] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/09/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
A multi-residue method was developed to identify and quantify pharmaceutical drug residues in full-fat milk, using a modified QuEChERS extraction procedure and sonication combined with Ultra-High-Performance Liquid Chromatography-High-Resolution Orbitrap Mass Spectrometry (UHPLC-HR-Orbitrap-MS). Sample preparation involves three different QuEChERS extraction procedures and sorbents for the purification step. The optimized modified extraction method, combined with the clean-up approaches using C18 and the EMR-Lipid sorbent, has been validated in terms of linearity, recovery, precision, LOD and LOQ, matrix effects (ME) and expanded uncertainty. The optimized method showed a linearity >0.9903, recoveries within the range 65.1-120.1%, precision (expressed as %RSD) <17.5%, medium (<39.9%) to low (<16.7%) matrix effects and acceptable expanded uncertainty (<33.1%). Finally, the proposed method was applied to representative real samples of milk (by local markets), revealing the existence of one pharmaceutical drug (imidocarb) in one sample.
Collapse
Affiliation(s)
- Ourania Koloka
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (O.K.); (M.K.); (T.A.)
| | - Marioanna Koulama
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (O.K.); (M.K.); (T.A.)
| | - Dimitra Hela
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (O.K.); (M.K.); (T.A.)
- University Research and Innovation Center, Institute of Environment and Sustainable Development, University of Ioannina, 45110 Ioannina, Greece
| | - Triantafyllos Albanis
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (O.K.); (M.K.); (T.A.)
- University Research and Innovation Center, Institute of Environment and Sustainable Development, University of Ioannina, 45110 Ioannina, Greece
| | - Ioannis Konstantinou
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (O.K.); (M.K.); (T.A.)
- University Research and Innovation Center, Institute of Environment and Sustainable Development, University of Ioannina, 45110 Ioannina, Greece
| |
Collapse
|
8
|
Chen Y, Song S, Xu L, Kuang H, Xu C, Guo L. Ultrasensitive Immunochromatographic Strip for Fast Screening of Piperacillin in Milk Based on a Monoclonal Antibody. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
9
|
Jongedijk E, Fifeik M, Arrizabalaga-Larrañaga A, Polzer J, Blokland M, Sterk S. Use of high-resolution mass spectrometry for veterinary drug multi-residue analysis. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
10
|
Giraldo J, Igualada C, Cabizza R, Althaus RL, Beltrán MC. Transfer of antibiotics from goat's milk to rennet curd and whey fractions during cheese-making. Food Chem 2022; 392:133218. [PMID: 35659161 DOI: 10.1016/j.foodchem.2022.133218] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/13/2022] [Accepted: 05/12/2022] [Indexed: 11/16/2022]
Abstract
The transfer of 35 antibiotics from milk to curd and whey was evaluated. Cheeses were produced at laboratory scale, from antibiotic-free goat's milk spiked with different antibiotic concentrations between 0.25 and 4 times the Maximum Residue Limits established in milk. Drug concentrations in milk, curd and whey were analysed by UHPLC-HRMS. Results indicated that most antibiotics were mainly transferred from milk to whey (up to 85.9%), with retention percentages in the curd lower than 50%, except for ceftiofur (59.7%) and dicloxacillin (52.8%). In most cases, drug distribution was unaffected by the antibiotic concentration in milk and correlated significantly to the drug lipophilicity (Log P) for β-lactams (R2 = 0.54) and sulfonamides (R2 = 0.62). When drug ionization was considered (Log D), improved correlation coefficients were obtained for macrolides (R2 = 0.98). However, other factors besides the drug solubility should be considered to explain and predict the partitioning of antibiotics during cheese-making.
Collapse
Affiliation(s)
- Jennifer Giraldo
- Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, Camino de Vera s/n, Valencia 46022, Spain.
| | - Carmen Igualada
- Laboratorio de Salud Pública de Valencia-FISABIO, Avda. de Catalunya 21, Valencia 46020, Spain.
| | - Roberto Cabizza
- Dipartimento di Agraria, Università degli Studi di Sassari, Viale Italia 39, Sassari 07100, Italy.
| | - Rafael Lisandro Althaus
- Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, R.P.L. Kreder, Esperanza 3080, Argentina.
| | - María Carmen Beltrán
- Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, Camino de Vera s/n, Valencia 46022, Spain.
| |
Collapse
|
11
|
Cucurbit[8]uril-Based Potentiometric Sensor Coupled to HPLC for Determination of Tetracycline Residues in Milk Samples. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10030098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The determination of chlortetracycline, doxycycline, oxytetracycline, and tetracycline in milk samples by HPLC coupled to a cucurbit[8]uril-based potentiometric sensor is herein presented. The new tetracycline-selective electrode is based on a polymeric membrane incorporating cucurbit[8]uril as a macrocyclic host, potassium tetrakis(p-chlorophenyl) borate as an ionic additive, 2-fluorophenyl 2-nitrophenyl ether as a plasticizer, and multi-walled carbon nanotubes as nanostructured materials. A microfluidic wall-jet flow-cell is implemented as a potentiometric detector after chromatographic separation by a C8 column using a gradient mobile phase of sulphuric acid and acetonitrile. The proposed methodology was validated following International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) and European Union (EU) guidelines. Linear regression models provided R2 in the range from 0.9973 ± 0.0026 to 0.9987 ± 0.0012 for all tetracycline antibiotics. The limits of detection and quantification ranged from 13.3 to 46.0 μg L−1 and 44.4 to 92.1 μg L−1, respectively. Precision intra-day, inter-day, and inter-electrode showed relative standard deviation values lower than 12.5%, 13.5%, and 12.9%, respectively. Accuracy was assessed by analysis of spiked milk samples around the maximum residue limit, yielding recovery values in the range from 81.3 to 108.5%. The simple, sensitive, cost-effective, and reliable HPLC-ion-selective electrode method justifies its use as a competitive alternative for the analysis of tetracycline residues in the food quality control sector.
Collapse
|