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Xiao J, Ni B, Tao Y, Wang J. Sulfonate-bonded covalent organic polymer as mixed-mode sorbent for on-line solid-phase extraction of ß 2-receptor agonists. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1158:122342. [PMID: 32889488 DOI: 10.1016/j.jchromb.2020.122342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/25/2020] [Accepted: 08/18/2020] [Indexed: 02/07/2023]
Abstract
A novel sulfonate-bonded covalent organic polymer (COPTPBA-BPDA@SA) with mixed-mode interactions of hydrophobic and cation-exchange was synthesized and exploited as sorbent for on-line solid-phase extraction (on-line SPE) of ß2-receptor agonists. The successful synthesis of COPTPBA-BPDA@SA was confirmed by the characterization of SEM, XPS and FT-IR. Due to the excellent mixed-mode extraction ability towards the positively charged ß2-receptor agonists and the good anti-interference performance, COPTPBA-BPDA@SA was introduced into on-line SPE-HPLC system for selective extraction of ß2-receptor agonists in pork and pork liver. Via the optimization of the extraction condition, including formic acid percentage and ACN percentage in the sampling solution, the mixed-mode extraction mechanism of COPTPBA-BPDA@SA was investigated. The elution condition, such as the pH value, formic acid percentage and ACN percentage of the eluent was also optimized for the desired SPE performance. Under the optimized condition, COPTPBA-BPDA@SA revealed better purification performance than COPTPBA-BPDA without sulfonating. The LODs for ß2-receptor agonists were in the range of 0.08-0.22 μg/kg, and the recoveries in different samples at three spiked levels (0.4, 4.0, 8.0 μg/kg) were ranged from 83.2% to 98.5% with RSDs less than 5.2%, which indicated the satisfactory mixed-mode extraction ability of COPTPBA-BPDA@SA as well as the good applicability of the developed method.
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Affiliation(s)
- Jianhua Xiao
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Bichen Ni
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Ying Tao
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China
| | - Jiabin Wang
- Institute of Biomedical and Pharmaceutical Technology, Fuzhou University, Fuzhou 350002, China.
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2
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Development of Molecularly Imprinted Membranes for Selective Determination of Urinary Ultra-Trace 5-Fluorouracil as Antineoplastic Drug Used in Chemotherapy. Macromol Res 2020. [DOI: 10.1007/s13233-020-8051-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Pan M, Li R, Xu L, Yang J, Cui X, Wang S. Reproducible Molecularly Imprinted Piezoelectric Sensor for Accurate and Sensitive Detection of Ractopamine in Swine and Feed Products. SENSORS (BASEL, SWITZERLAND) 2018; 18:E1870. [PMID: 29880768 PMCID: PMC6022169 DOI: 10.3390/s18061870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/01/2018] [Accepted: 06/06/2018] [Indexed: 12/22/2022]
Abstract
This paper describes the development of a reproducible molecularly imprinted piezoelectric sensor for the accurate and sensitive detection of ractopamine (RAC) in swine and feed products. The synthesized molecularly imprinted polymer (MIP) was directly immobilized on the surface of a quartz crystal microbalance (QCM) Au chip as the recognition element. The experimental parameters in the fabrication, measurement and regeneration process were evaluated in detail to produce an MIP-based piezoelectric sensor with high sensing capability. The developed piezoelectric sensor was verified to perform favorably in the RAC analysis of swine and feed products, with acceptable accuracy (recovery: 75.9⁻93.3%), precision [relative standard deviation (n = 3): 2.3⁻6.4%], and sensitivity [limit of detection: 0.46 ng g-1 (swine) and 0.38 ng g-1 (feed)]. This portable MIP-based chip for the piezoelectric sensing of RAC could be reused for at least 30 cycles and easily stored for a long time. These results demonstrated that the developed MIP-based piezoelectric sensor presents an accurate, sensitive and cost-effective method for the quantitative detection of RAC in complex samples. This research offers a promising strategy for the development of novel effective devices used for use in food safety analysis.
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Affiliation(s)
- Mingfei Pan
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Rui Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Leling Xu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Jingying Yang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Xiaoyuan Cui
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China.
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4
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Pseudo template molecularly imprinted polymer for determination of 14 kind of β-agonists in animal urine by ultra-high-performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2017; 1526:23-30. [DOI: 10.1016/j.chroma.2017.09.076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 09/28/2017] [Accepted: 09/30/2017] [Indexed: 11/20/2022]
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5
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Arabi M, Ostovan A, Ghaedi M, Purkait MK. Novel strategy for synthesis of magnetic dummy molecularly imprinted nanoparticles based on functionalized silica as an efficient sorbent for the determination of acrylamide in potato chips: Optimization by experimental design methodology. Talanta 2016; 154:526-32. [DOI: 10.1016/j.talanta.2016.04.010] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/03/2016] [Accepted: 04/04/2016] [Indexed: 11/16/2022]
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7
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Tang Y, Gao J, Liu X, Lan J, Gao X, Ma Y, Li M, Li J. Determination of ractopamine in pork using a magnetic molecularly imprinted polymer as adsorbent followed by HPLC. Food Chem 2016; 201:72-9. [DOI: 10.1016/j.foodchem.2016.01.070] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 01/11/2016] [Accepted: 01/18/2016] [Indexed: 11/25/2022]
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8
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Zhu F, Wang J, Zhu L, Tan L, Feng G, Liu S, Dai Y, Wang H. Preparation of molecularly imprinted polymers using theanine as dummy template and its application as SPE sorbent for the determination of eighteen amino acids in tobacco. Talanta 2016; 150:388-98. [PMID: 26838422 DOI: 10.1016/j.talanta.2015.12.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/11/2015] [Accepted: 12/14/2015] [Indexed: 10/22/2022]
Abstract
In this paper, a novel dummy template molecularly imprinted polymer (DMIP) based on a vinyl-SiO2 microspheres surface for the simultaneous selective recognition and enrichment of 18 amino acids was prepared via a surface molecular imprinting technique using theanine as a dummy template. Compared to the imprinted polymers prepared using traditional polymerization techniques, the obtained DMIPs exhibited a regular spherical shape and were relatively monodisperse. The maximal sorption capacity (Qmax) of the resulting DMIPs for the 18 amino acids was up to 1444.3 mg g(-1). A kinetic binding study showed that the sorption capacity reached 85.40% of Qmax in 25 min and sorption equilibrium at 30 min. The imprint factors of the sorbents ranged from 2.86 to 6.9 for the 18 amino acids, which indicated that the DMIP sorbents have high selectivity. An HPLC-UV method for the simultaneous determination of 18 amino acids in tobacco and tobacco smoke was developed using the DMIPs as sorbents for solid phase extraction (SPE) in the sample pretreatment procedure. Under the optimum experimental conditions, the materials had enrichment factors of up to 200 for the amino acids, and the recoveries of the 18 amino acids in tobacco smoke were in the range from 79% to 104% with relative standard deviations of less than 7.4%. It indicated that the obtained DMIP sorbents could specifically recognize the amino acids from complicated samples.
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Affiliation(s)
- Fengling Zhu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jing Wang
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Lijun Zhu
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Lanlan Tan
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Guanglin Feng
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Shaomin Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Ya Dai
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China.
| | - Hua Wang
- Research and Development Center, China Tobacco Anhui Industrial Corporation, Hefei, Anhui 230088, China
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Wang P, Liu X, Su X, Zhu R. Sensitive detection of β-agonists in pork tissue with novel molecularly imprinted polymer extraction followed liquid chromatography coupled tandem mass spectrometry detection. Food Chem 2015; 184:72-9. [DOI: 10.1016/j.foodchem.2015.03.073] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 03/18/2015] [Accepted: 03/20/2015] [Indexed: 11/29/2022]
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10
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Xiao X, Yan K, Xu X, Li G. Rapid analysis of ractopamine in pig tissues by dummy-template imprinted solid-phase extraction coupling with surface-enhanced Raman spectroscopy. Talanta 2015; 138:40-45. [DOI: 10.1016/j.talanta.2015.02.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 01/27/2015] [Accepted: 02/01/2015] [Indexed: 01/18/2023]
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11
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Hu Y, Feng S, Gao F, Li-Chan EC, Grant E, Lu X. Detection of melamine in milk using molecularly imprinted polymers–surface enhanced Raman spectroscopy. Food Chem 2015; 176:123-9. [DOI: 10.1016/j.foodchem.2014.12.051] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 11/05/2014] [Accepted: 12/13/2014] [Indexed: 10/24/2022]
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12
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Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
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Zhang G, Tang Y, Shang J, Wang Z, Yu H, Du W, Fu Q. Flow-injection chemiluminescence method to detect a β2 adrenergic agonist. LUMINESCENCE 2014; 30:102-9. [PMID: 24830367 DOI: 10.1002/bio.2698] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 03/27/2014] [Accepted: 04/03/2014] [Indexed: 11/09/2022]
Abstract
A new method for the detection of β2 adrenergic agonists was developed based on the chemiluminescence (CL) reaction of β2 adrenergic agonist with potassium ferricyanide-luminol CL. The effect of β2 adrenergic agonists including isoprenaline hydrochloride, salbutamol sulfate, terbutaline sulfate and ractopamine on the CL intensity of potassium ferricyanide-luminol was discovered. Detection of the β2 adrenergic agonist was carried out in a flow system. Using uniform design experimentation, the influence factors of CL were optimized. The optimal experimental conditions were 1 mmol/L of potassium ferricyanide, 10 µmol/L of luminol, 1.2 mmol/L of sodium hydroxide, a flow speed of 2.6 mL/min and a distance of 1.2 cm from 'Y2 ' to the flow cell. The linear ranges and limit of detection were 10-100 and 5 ng/mL for isoprenaline hydrochloride, 20-100 and 5 ng/mL for salbutamol sulfate, 8-200 and 1 ng/mL for terbutaline sulfate, 20-100 and 4 ng/mL for ractopamine, respectively. The proposed method allowed 200 injections/h with excellent repeatability and precision. It was successfully applied to the determination of three β2 adrenergic agonists in commercial pharmaceutical formulations with recoveries in the range of 96.8-98.5%. The possible CL reaction mechanism of potassium ferricyanide-luminol-β2 adrenergic agonist was discussed from the UV/vis spectra.
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Affiliation(s)
- Guangbin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, People's Republic of China; Institute of Analytical Science, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, People's Republic of China
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Liu H, Fang G, Wang S. Molecularly imprinted optosensing material based on hydrophobic CdSe quantum dots via a reverse microemulsion for specific recognition of ractopamine. Biosens Bioelectron 2014; 55:127-32. [DOI: 10.1016/j.bios.2013.11.064] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 11/13/2013] [Accepted: 11/24/2013] [Indexed: 10/25/2022]
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15
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Queiroz M, Melo L. Selective capillary coating materials for in-tube solid-phase microextraction coupled to liquid chromatography to determine drugs and biomarkers in biological samples: A review. Anal Chim Acta 2014; 826:1-11. [DOI: 10.1016/j.aca.2014.03.024] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/10/2014] [Accepted: 03/17/2014] [Indexed: 11/25/2022]
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16
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Kong LJ, Pan MF, Fang GZ, He XL, Yang YK, Dai J, Wang S. Molecularly imprinted quartz crystal microbalance sensor based on poly(o-aminothiophenol) membrane and Au nanoparticles for ractopamine determination. Biosens Bioelectron 2014; 51:286-92. [DOI: 10.1016/j.bios.2013.07.043] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 07/18/2013] [Accepted: 07/22/2013] [Indexed: 11/25/2022]
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17
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Feng S, Gao F, Chen Z, Grant E, Kitts DD, Wang S, Lu X. Determination of α-tocopherol in vegetable oils using a molecularly imprinted polymers-surface-enhanced Raman spectroscopic biosensor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10467-10475. [PMID: 24099154 DOI: 10.1021/jf4038858] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report the development of a novel hybrid "capture-detection" molecularly imprinted polymers-surface-enhanced Raman spectroscopic (MIPs-SERS) biosensor for the detection and quantification of α-tocopherol (α-Toc) in vegetable oils. α-Toc served as the template for MIPs synthesis. Methacrylic acid formed as the functional monomer. Ethylene glycol dimethacrylate was the cross-linking agent, and 2,2'-azobisisobutyronitrile was used as the initiator. The synthesized MIPs functioned to rapidly and selectively adsorb and separate α-Toc from oil components. We validated a dendritic silver nanostructure synthesized by a displacement reaction to be a suitable SERS substrate for the enhancement of Raman signals. Second-derivative transformations and chemometric models based upon SERS spectral features confirmed the possibility of a rapid and precise detection and quantification of different spiking levels of α-Toc in four different sources of vegetable oils (Mahalanobis distance from 15.93 to 34.01 for PCA model; R > 0.92, RMSE < 0.41 for PLSR model). The MIPs-SERS biosensor had a high sensitivity as well as a good recovery for α-Toc analysis in vegetable oils. The entire analysis required 15 min or less to complete with limited sample preparation.
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Affiliation(s)
- Shaolong Feng
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
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Duan J, He D, Wang W, Liu Y, Wu H, Wang Y, Fu M, Li S. The fabrication of nanochain structure of gold nanoparticles and its application in ractopamine sensing. Talanta 2013; 115:992-8. [DOI: 10.1016/j.talanta.2013.04.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 04/15/2013] [Accepted: 04/21/2013] [Indexed: 10/26/2022]
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19
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Du W, Fu Q, Zhao G, Huang P, Jiao Y, Wu H, Luo Z, Chang C. Dummy-template molecularly imprinted solid phase extraction for selective analysis of ractopamine in pork. Food Chem 2013; 139:24-30. [DOI: 10.1016/j.foodchem.2013.01.109] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 12/20/2012] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
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20
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Wang CC, Lu CC, Chen YL, Cheng HL, Wu SM. Chemometric optimization of cation-selective exhaustive injection sweeping micellar electrokinetic chromatography for quantification of ractopamine in porcine meat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:5914-5920. [PMID: 23718839 DOI: 10.1021/jf401064x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
An online stacking capillary electrophoresis (CE) method, cation-selective exhaustive injection sweeping micellar electrokinetic chromatography (CSEI-sweep-MEKC), is developed and optimized for analysis of ractopamine (RP) and its homologue dehydroxyractopamine (DRP) in porcine meat. Chemometric experimental design was used to achieve the best possible optimization and reduce the number of trials and errors. The CSEI-sweep-MEKC method enables nanogram per gram level analysis, with limits of detection (LODs) in meat of 5 ng/g for RP and 3 ng/g for DRP (S/N = 3). A higher conductivity buffer (HCB) zone was injected into the capillary, allowing for the analytes to be electrokinetically injected at a voltage of 9 kV for 12 min. Using 125 mM sodium dodecyl sulfate and 15% methanol in the sweeping buffer, RP and DRP were well-separated. The method was validated with a linear calibration curve of 10-300 ng/g (r > 0.994). In comparison to the normal capillary zone electrophoresis method (1 psi for 10 s), this stacking strategy resulted in 900 times sensitivity enhancement. This technique was further applied for analyzing seven kinds of commercial meats, and the residual RP was detected in one (5.76 ng/g of RP). The data were corresponding to the data analyzed by the commercial testing kit and mass spectrometry spectra. This method was successfully used on real samples and is considered feasible for serving as a tool for routine examination in markets.
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Affiliation(s)
- Chun-Chi Wang
- School of Pharmacy, and ‡Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University , Kaohsiung 807, Taiwan
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Freire EF, Borges KB, Tanimoto H, Nogueira RT, Bertolini LCT, de Gaitani CM. Monitoring of ractopamine concentration in the mixture of this feed additive with vitamin mineral complex and with swine feed by HPLC. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013; 30:796-803. [DOI: 10.1080/19440049.2013.780213] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wang P, Zhu H, Zhang W, Ye Z, Zhu R, Su X. Synthesis of ractopamine molecularly imprinted membrane and its application in the rapid determination of three β-agonists in porcine urine samples. J Sep Sci 2013; 36:1455-62. [DOI: 10.1002/jssc.201201014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 01/29/2013] [Accepted: 01/30/2013] [Indexed: 11/10/2022]
Affiliation(s)
| | - Hongxia Zhu
- Department of Chemistry; Capital Normal University; Beijing; P. R. China
| | | | | | - Ruohua Zhu
- Department of Chemistry; Capital Normal University; Beijing; P. R. China
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Huang W, Yang X, Zhao S, Zhang M, Hu X, Wang J, Zhao H. Fast and selective recognizes polysaccharide by surface molecularly imprinted film coated onto aldehyde-modified magnetic nanoparticles. Analyst 2013; 138:6653-61. [DOI: 10.1039/c3an01149f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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A novel dual-function molecularly imprinted polymer on CdTe/ZnS quantum dots for highly selective and sensitive determination of ractopamine. Anal Chim Acta 2013; 762:76-82. [DOI: 10.1016/j.aca.2012.11.047] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 11/18/2012] [Accepted: 11/24/2012] [Indexed: 11/22/2022]
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25
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Luliński P, Maciejewska D. Effective separation of dopamine from bananas on 2-(3,4-dimethoxyphenyl)ethylamine imprinted polymer. J Sep Sci 2012; 35:1050-7. [PMID: 22589167 DOI: 10.1002/jssc.201100910] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 2-(3,4-dimethoxyphenyl)ethylamine imprinted polymer (MIP(pt) ) was prepared via the precipitation polymerization together with a nonimprinted polymer (NIP). The morphology of particles was investigated by scanning electron microscopy and the specific surface areas were estimated by methylene blue adsorption (60.5 ± 3.5 and 36.9 ± 1.2 m(2)/g for MIP(pt) and NIP, respectively). The binding experiments were performed to determine the binding capacity of MIP(pt)/NIP particles toward dopamine. Next, the effects of solvents on loading, washing, and eluting steps were examined on solid-phase extraction (SPE). Methanol-water 85:15 v/v (loading step), methanol (washing step), and 0.04 M aqueous ammonium acetate-methanol 30:70 v/v (eluting step) were selected as the most effective systems. Described SPE protocol was successfully applied for separation of dopamine on 2-(3,4-dimethoxyphenyl)ethylamine imprinted particles. Finally, the molecularly imprinted polymer was used for determination of dopamine in spiked banana extract. The total recovery of dopamine from MIP(pt) was equal to 88.5 ± 4.6%, but from NIP was only 12.8 ± 2.3%. The developed material and method were demonstrated to be applicable for the separation of dopamine from bananas. The commercial sorbent C18 was not suitable to such application.
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Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
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Li Y, Fu Q, Liu M, Jiao YY, Du W, Yu C, Liu J, Chang C, Lu J. Separation and enrichment of trace ractopamine in biological samples by uniformly-sized molecularly imprinted polymers. J Pharm Anal 2012; 2:395-402. [PMID: 29403774 PMCID: PMC5760926 DOI: 10.1016/j.jpha.2012.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 08/20/2012] [Indexed: 11/26/2022] Open
Abstract
In order to prepare a high capacity packing material for solid-phase extraction with specific recognition ability of trace ractopamine in biological samples, uniformly-sized, molecularly imprinted polymers (MIPs) were prepared by a multi-step swelling and polymerization method using methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linker, and toluene as a porogen respectively. Scanning electron microscope and specific surface area were employed to identify the characteristics of MIPs. Ultraviolet spectroscopy, Fourier transform infrared spectroscopy, Scatchard analysis and kinetic study were performed to interpret the specific recognition ability and the binding process of MIPs. The results showed that, compared with other reports, MIPs synthetized in this study showed high adsorption capacity besides specific recognition ability. The adsorption capacity of MIPs was 0.063 mmol/g at 1 mmol/L ractopamine concentration with the distribution coefficient 1.70. The resulting MIPs could be used as solid-phase extraction materials for separation and enrichment of trace ractopamine in biological samples.
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Affiliation(s)
- Ya Li
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China.,Department of Pharmacy, Northwest Hospital, Xi'an 710004, PR China
| | - Qiang Fu
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Meng Liu
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China.,Department of Pharmacy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, PR China
| | - Yuan-Yuan Jiao
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Wei Du
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Chong Yu
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Jing Liu
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Chun Chang
- Faculty of Pharmacy, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Jian Lu
- Xian Yang Central Hospital, Xian Yang 71200, PR China
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Zhang Q, Su Y, He Q, Shen X, He L, Zhang N, Zeng Z. Molecularly imprinted solid-phase extraction for the selective HPLC determination of ractopamine in pig urine. J Sep Sci 2011; 34:3399-409. [DOI: 10.1002/jssc.201100655] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 09/08/2011] [Accepted: 09/09/2011] [Indexed: 11/08/2022]
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28
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Tang YW, Fang GZ, Wang S, Li JL. Covalent imprinted polymer for selective and rapid enrichment of ractopamine by a noncovalent approach. Anal Bioanal Chem 2011; 401:2275-82. [DOI: 10.1007/s00216-011-5280-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 07/08/2011] [Accepted: 07/22/2011] [Indexed: 11/25/2022]
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29
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Hu Y, Li Y, Liu R, Tan W, Li G. Magnetic molecularly imprinted polymer beads prepared by microwave heating for selective enrichment of β-agonists in pork and pig liver samples. Talanta 2011; 84:462-70. [DOI: 10.1016/j.talanta.2011.01.045] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 01/11/2011] [Accepted: 01/16/2011] [Indexed: 11/24/2022]
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30
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Chen L, Xu S, Li J. Recent advances in molecular imprinting technology: current status, challenges and highlighted applications. Chem Soc Rev 2011; 40:2922-42. [PMID: 21359355 DOI: 10.1039/c0cs00084a] [Citation(s) in RCA: 1147] [Impact Index Per Article: 88.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Molecular imprinting technology (MIT) concerns formation of selective sites in a polymer matrix with the memory of a template. Recently, molecularly imprinted polymers (MIPs) have aroused extensive attention and been widely applied in many fields, such as solid-phase extraction, chemical sensors and artificial antibodies owing to their desired selectivity, physical robustness, thermal stability, as well as low cost and easy preparation. With the rapid development of MIT as a research hotspot, it faces a number of challenges, involving biological macromolecule imprinting, heterogeneous binding sites, template leakage, incompatibility with aqueous media, low binding capacity and slow mass transfer, which restricts its applications in various aspects. This critical review briefly reviews the current status of MIT, particular emphasis on significant progresses of novel imprinting methods, some challenges and effective strategies for MIT, and highlighted applications of MIPs. Finally, some significant attempts in further developing MIT are also proposed (236 references).
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Affiliation(s)
- Lingxin Chen
- Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
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31
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Substitution of Antibody with Molecularly Imprinted Film in Enzyme-Linked Immunosorbent Assay for Determination of Trace Ractopamine in Urine and Pork Samples. FOOD ANAL METHOD 2011. [DOI: 10.1007/s12161-011-9206-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Zhu H, Ma L, Fang G, Pan M, Lu J, Wang X, Wang S. Preparation of a molecularly imprinted polymer using TMB as a dummy template and its application as SPE sorbent for determination of six PBBs in and fish samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:393-399. [PMID: 32938042 DOI: 10.1039/c0ay00479k] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A novel molecularly imprinted polymer (MIP) based on a silica-gel surface for the separation and concentration of polybrominated biphenyls (PBBs) was prepared using 3,3',5,5'-tetramethylbenzidine (TMB) as a dummy template by a surface molecular imprinting technique in combination with a sol-gel process. The results obtained from a series of adsorption experiments proved that the prepared sorbent had a good adsorption capacity and a fast mass transfer rate to TMB. Meanwhile, a method was developed for the determination of six PBBs using TMB-MIP as a solid-phase extraction (SPE) enrichment sorbent coupled to GC-ECD. Under the optimum experimental conditions, the linear range of the calibration curve was 0.01-5.0 μg L-1 (r2 > 0.99), and LODs for each analyte were between 2.0 ng L-1 and 8.0 ng L-1. Relative standard deviations (RSD) for nine replicate detections of 1.0 μg L-1 of each analyte ranged from 4.30% to 7.89%. The proposed method was applied to the determination of six PBBs in spiked water and fish samples with recoveries ranging from 61.48% to 114.06%.
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Affiliation(s)
- Huaping Zhu
- Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China.
| | - Ligai Ma
- Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China.
| | - Guozhen Fang
- Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China.
| | - Mingfei Pan
- Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China.
| | - Jinping Lu
- Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China.
| | - Xuenan Wang
- Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China.
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China.
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33
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Simultaneous Determination of Cimaterol, Salbutamol, Terbutaline and Ractopamine in Feed by SPE Coupled to UPLC. Chromatographia 2011. [DOI: 10.1007/s10337-010-1873-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Hu Y, Liu R, Li Y, Li G. Investigation of ractopamine-imprinted polymer for dispersive solid-phase extraction of trace β-agonists in pig tissues. J Sep Sci 2010; 33:2017-25. [DOI: 10.1002/jssc.201000063] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Xu Z, Hu Y, Hu Y, Li G. Investigation of ractopamine molecularly imprinted stir bar sorptive extraction and its application for trace analysis of β2-agonists in complex samples. J Chromatogr A 2010; 1217:3612-8. [DOI: 10.1016/j.chroma.2010.03.046] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 03/21/2010] [Accepted: 03/24/2010] [Indexed: 10/19/2022]
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36
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Kinsella B, O’Mahony J, Malone E, Moloney M, Cantwell H, Furey A, Danaher M. Current trends in sample preparation for growth promoter and veterinary drug residue analysis. J Chromatogr A 2009; 1216:7977-8015. [DOI: 10.1016/j.chroma.2009.09.005] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 08/24/2009] [Accepted: 09/03/2009] [Indexed: 12/16/2022]
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