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Moradi M, Yamini Y, Feizi N. Development and challenges of supramolecular solvents in liquid-based microextraction methods. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Bajkacz S, Adamczewska P, Kokoszka K, Kycia-Słocka E, Sochacki A, Felis E. Supramolecular Solvent-Based Microextraction of Selected Anticonvulsant and Nonsteroidal Anti-Inflammatory Drugs from Sediment Samples. Molecules 2020; 25:molecules25235671. [PMID: 33271858 PMCID: PMC7729498 DOI: 10.3390/molecules25235671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/25/2020] [Accepted: 11/28/2020] [Indexed: 12/11/2022] Open
Abstract
The increase in the production and consumption of pharmaceuticals increases their presence in the global environment, which may result in direct threats to living organisms. For this reason, there is a need for new methods to analyze drugs in environmental samples. Here, a new procedure for separating and determining selected drugs (diclofenac, ibuprofen, and carbamazepine) from bottom sediment and water samples was developed. Drugs were determined by ultra-high performance liquid chromatography coupled with an ultraviolet detector (UHPLC-UV). In this work, a universal and single-step sample treatment, based on supramolecular solvents (SUPRAS), was proposed to isolate selected anticonvulsants and nonsteroidal anti-inflammatory drugs (NSAIDs) from sediment samples. The following parameters were experimentally selected: composition of the supramolecular solvent (composition THF:H2O (v/v), amount of decanoic acid), volume of extractant, sample mass, extraction time, centrifugation time, and centrifugation speed. Finally, the developed procedure was validated. A Speedisk procedure was also developed to extract selected drugs from water samples. The recovery of analytes using the SUPRAS procedure was in the range of 88.8-115%, while the recoveries of the Speedisk solid-phase extraction procedure ranged from 81.0-106%. The effectiveness of the sorption of the tested drugs by sediment was also examined.
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Affiliation(s)
- Sylwia Bajkacz
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6 St., 44-100 Gliwice, Poland; (P.A.); (K.K.); (E.K.-S.)
- Correspondence:
| | - Paulina Adamczewska
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6 St., 44-100 Gliwice, Poland; (P.A.); (K.K.); (E.K.-S.)
| | - Klaudia Kokoszka
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6 St., 44-100 Gliwice, Poland; (P.A.); (K.K.); (E.K.-S.)
| | - Elżbieta Kycia-Słocka
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6 St., 44-100 Gliwice, Poland; (P.A.); (K.K.); (E.K.-S.)
| | - Adam Sochacki
- Environmental Biotechnology Department, Faculty of Power and Environmental Engineering, Silesian University of Technology, Akademicka 2 St., 44-100 Gliwice, Poland; (A.S.); (E.F.)
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
| | - Ewa Felis
- Environmental Biotechnology Department, Faculty of Power and Environmental Engineering, Silesian University of Technology, Akademicka 2 St., 44-100 Gliwice, Poland; (A.S.); (E.F.)
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Selahle SK, Nomngongo PN. Supramolecular Solvent Based Liquid-Liquid Microextraction for Preconcentration of Selected Fluoroquinolone Antibiotics in Environmental Water Sample Prior to High Performance Liquid Chromatographic Determination. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411014666180523093933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background and Objective:
A rapid, simple and environmental friendly supramolecular
solvent (SUPRAS) based liquid-liquid microextraction method for preconcentration of ciprofloxacin
(CIPRO), danofloxacin (DANO) and enrofloxacin (ENRO) from wastewater was developed.
Methods:
This microextraction technique was coupled with high-performance liquid chromatography
equipped with a diode array detector (HPLC-PDA) for detection and separation of the antibiotics. The
SUPRAS composed of decanoic acid and tricaprylymethylammonium chloride. Optimum conditions for
the extraction and preconcentration of all the antibiotics were obtained using surface response methodology
(RSM) based on Box-Behnken design.
Results:
Under optimum conditions, the limits of detection (LOD) and limit of quantification (LOQ)
ranged from 0.06-0.14 µg L−1 and 0.22-0.47 μg L−1, respectively with the preconcentration factors ranging
from 153-241. The linear dynamic ranges were between LOQ and 850 µg L−1 with correlation coefficients
ranging from 0.9928 to 0.9999. The intra-day (n = 15) and inter-day (n = 5) precisions (expressed
in terms of %RSD) for 50 µg L−1 of CIPRO, DANO and ENRO were in the range of 3.3–4%
and 4.1–5.8%, respectively.
Conclusion:
Lastly, the developed method was used for the extraction, preconcentration and quantification
of selected CIPRO, DANO and ENRO in influent and effluent wastewater samples.
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Affiliation(s)
- Shirley K. Selahle
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein Campus, Johannesburg, 2028, South Africa
| | - Philiswa N. Nomngongo
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein Campus, Johannesburg, 2028, South Africa
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Yang SD, Tang T, Tan YM, Wang FY, Zhang WB, Li T, Xia MZ. Determination of benzo( a)pyrene in fried and baked foods by HPLC combined with vesicular coacervative supramolecular solvent extraction. Journal of Food Science and Technology 2018; 56:428-435. [PMID: 30728586 DOI: 10.1007/s13197-018-3504-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/01/2018] [Accepted: 11/07/2018] [Indexed: 11/24/2022]
Abstract
A simple, rapid and low-cost determination method of benzo(a)pyrene in fried and baked foods was proposed by high performance liquid chromatography combined with vesicular coacervative supramolecular solvent (SUPRAS) extraction. The vesicular coacervate was composed of 1-octanol and tetrabutylammonium bromide. 200 mg of dried samples with 600 μL SUPRAS could be mixed to extract benzo(a)pyrene. Neither evaporation nor further clean-up steps for the extracts were needed. The overall sample treatment took approximately 30 min, and several samples could be simultaneously treated using conventional lab equipment. Then, benzo(a)pyrene was analyzed via liquid chromatography-fluorescence detection. Parameters affecting the extraction efficiency were investigated and optimized. The results showed good linearity of benzo(a)pyrene with the coefficients of determination (R 2) of more than 0.9999 in the range of 0.1-50.0 µg/kg. The limit of detection of the method was 0.11 µg/kg. Recoveries for spiked samples in the range of 1-10 µg/kg were between 89.86 and 100.01%, with relative standard deviations from 1.20 to 3.20%. Benzo(a)pyrene was present in food samples (including instant noodles, biscuits, rice crust and fried bread stick) at concentrations in the range of 0.08-0.39 µg/kg according to the proposed method. The proposed pretreatment method significantly reduces the analysis time. Furthermore, the solventless approach is in accordance with the green chemistry development trend and has significant application prospects.
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Affiliation(s)
- San-Dong Yang
- 1School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China.,Liaoning Engineering Research Center of Dalian Elite Analytical Instruments, Dalian, 116023 China
| | - Tao Tang
- 1School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China.,Liaoning Engineering Research Center of Dalian Elite Analytical Instruments, Dalian, 116023 China
| | - Yi-Meng Tan
- 1School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China
| | - Feng-Yun Wang
- 1School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China
| | - Wei-Bing Zhang
- 3East China University of Science and Technology, Shanghai, 200237 China
| | - Tong Li
- Liaoning Engineering Research Center of Dalian Elite Analytical Instruments, Dalian, 116023 China
| | - Ming-Zhu Xia
- 1School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China
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Gorji S, Biparva P, Bahram M, Nematzadeh G. Rapid and Direct Microextraction of Pesticide Residues from Rice and Vegetable Samples by Supramolecular Solvent in Combination with Chemometrical Data Processing. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1371-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Salamat Q, Yamini Y, Moradi M, Karimi M, Nazraz M. Novel generation of nano-structured supramolecular solvents based on an ionic liquid as a green solvent for microextraction of some synthetic food dyes. NEW J CHEM 2018. [DOI: 10.1039/c8nj03943g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new, fast, and environmentally friendly supra molecular solvent was introduced for extraction of three synthetic food dyes in foodstuff samples.
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Affiliation(s)
- Qamar Salamat
- Department of Chemistry
- Faculty of Sciences
- Tarbiat Modares University
- Tehran
- Iran
| | - Yadollah Yamini
- Department of Chemistry
- Faculty of Sciences
- Tarbiat Modares University
- Tehran
- Iran
| | - Morteza Moradi
- Materials and Energy Research Center
- Department of Semiconductors
- Karaj
- Iran
| | - Meghdad Karimi
- Department of Chemistry
- Faculty of Sciences
- Tarbiat Modares University
- Tehran
- Iran
| | - Mahsa Nazraz
- Department of Chemistry
- Faculty of Sciences
- Tarbiat Modares University
- Tehran
- Iran
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Mpupa A, Mashile GP, Nomngongo PN. Vortex assisted-supramolecular solvent based microextraction coupled with spectrophotometric determination of triclosan in environmental water samples. OPEN CHEM 2017. [DOI: 10.1515/chem-2017-0032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
AbstractA simple, fast and environmental friendly vortex assisted-supramolecular solvent based microextraction (VA-SSME) method was developed for the preconcetration of triclosan in wastewater prior to UV spectrophotometric determination. To achieve maximum sensitivity and accuracy for the target analyte, the experimental parameters affecting the VA-SSME procedure were optimized using response surface methodology (RSM). Under optimised conditions, the correlation coefficient (R2) and recoveries were 0.9994 and 100.31-118.5%, respectively. The intra-day (repeatability) and inter-day (reproducibility) precisions expressed in terms of relative standard deviation (RSD) were 2-4% and 5.2%, respectively. The preconcentration factor and limits of detection (LOD) and quantification (LOQ) were found to be 90, 0.28 μg L−1 and 0.92 μg L−1, respectively. The developed VA-SSME/UV method was applied for the determination of triclosan in real samples collected over a period of three months. The analytical results obtained showed that triclosan was frequently detected in influent wastewater samples but was not detected in effluent samples.
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Affiliation(s)
- Anele Mpupa
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028, South Africa
| | - Geaneth P. Mashile
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028, South Africa
| | - Philiswa N. Nomngongo
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg, 2028, South Africa
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8
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Recent advances in liquid-phase microextraction techniques for the analysis of environmental pollutants. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.08.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Shokrollahi A, Pili HB, Doust KH. Microspectrophotometric determination of erythrosine in beverage and water samples after ultrasonic assisted supramolecular-based dispersion solidification liquid–liquid microextraction. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817060028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Monitoring of antifungal drugs in biological samples using ultrasonic-assisted supramolecular dispersive liquid–liquid microextraction based on solidification of a floating organic droplet. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1027:74-80. [DOI: 10.1016/j.jchromb.2016.05.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/08/2016] [Accepted: 05/15/2016] [Indexed: 11/17/2022]
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11
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Shokrollahi A, Behrooj Pili H. Supramolecular based-ligandless ultrasonic assisted-dispersion solidification liquid–liquid microextraction of uranyl ion prior to spectrophotometric determination with dibenzoylmethane. RSC Adv 2016. [DOI: 10.1039/c5ra23355k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and environmentally friendly method has been developed for preconcentration of uranyl ion by supramolecular based-ligandless ultrasonic assisted-dispersion solidification liquid–liquid microextraction before spectrophotometric detection.
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12
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Quick Supramolecular Solvent-Based Microextraction Combined with Ultra-High Performance Liquid Chromatography for the Analysis of Isoflavones in Soy Foods. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0365-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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13
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Ultrasound-assisted supramolecular dispersive liquid–liquid microextraction based on solidification of floating organic drops for preconcentration of palladium in water and road dust samples. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.06.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Development a novel supramolecular solvent microextraction procedure for copper in environmental samples and its determination by microsampling flame atomic absorption spectrometry. Talanta 2014; 126:191-5. [DOI: 10.1016/j.talanta.2014.03.053] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 03/20/2014] [Accepted: 03/21/2014] [Indexed: 11/20/2022]
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15
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Spietelun A, Marcinkowski Ł, de la Guardia M, Namieśnik J. Green aspects, developments and perspectives of liquid phase microextraction techniques. Talanta 2014; 119:34-45. [DOI: 10.1016/j.talanta.2013.10.050] [Citation(s) in RCA: 250] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 10/21/2013] [Accepted: 10/22/2013] [Indexed: 02/05/2023]
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16
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Yilmaz E, Soylak M. Supramolecular solvent microextraction of gold prior to its determination by microsample injection system coupled with flame atomic absorption spectrometry. RSC Adv 2014. [DOI: 10.1039/c4ra08209e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A supramolecular solvent based liquid–liquid microextraction (SsLLME) system for gold was developed prior to its determination by a microsample injection system coupled with flame atomic absorption spectrometric (MS-FAAS).
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Affiliation(s)
- Erkan Yilmaz
- Erciyes University
- Faculty of Sciences
- Department of Chemistry
- 38039 Kayseri, Turkey
| | - Mustafa Soylak
- Erciyes University
- Faculty of Sciences
- Department of Chemistry
- 38039 Kayseri, Turkey
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17
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Moradi M, Yamini Y, Tayyebi M, Asiabi H. Ultrasound-assisted liquid-phase microextraction based on a nanostructured supramolecular solvent. Anal Bioanal Chem 2013; 405:4235-43. [DOI: 10.1007/s00216-013-6810-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 12/25/2012] [Accepted: 01/30/2013] [Indexed: 11/30/2022]
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18
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Moradi M, Yamini Y. Surfactant roles in modern sample preparation techniques: A review. J Sep Sci 2012; 35:2319-40. [DOI: 10.1002/jssc.201200368] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 05/23/2012] [Accepted: 05/24/2012] [Indexed: 11/09/2022]
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19
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Paíga P, Morais S, Oliva-Teles T, Correia M, Delerue-Matos C, Sousa AMM, Gonçalves MDP, Duarte SC, Pena A, Lino CM. Determination of Ochratoxin A in Bread: Evaluation of Microwave-Assisted Extraction Using an Orthogonal Composite Design Coupled with Response Surface Methodology. FOOD BIOPROCESS TECH 2012. [DOI: 10.1007/s11947-012-0876-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Tittlemier S, Roscoe M, Kobialka C, Blagden R. Considerations in the preparation of laboratory samples for the analysis of ochratoxin A in wheat. WORLD MYCOTOXIN J 2012. [DOI: 10.3920/wmj2012.1393] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A process used to prepare the test portion of ground wheat from the whole grain laboratory sample for ochratoxin A (OTA) analysis using dry comminution with homogenisation and sub-sampling via a rotary sample divider was developed and evaluated. With respect to OTA content, the developed process produced a homogeneous sample of ground wheat from 10 kg of whole grain. Relative standard deviations of the mean OTA concentration for five naturally contaminated wheat samples processed using the developed method ranged from 9% to 19% over a relevant concentration range of 1.7 to 7.6 mg/kg. Additional studies demonstrated that OTA was stable in ground wheat with moisture content between 12 to 13% for at least a year when stored at ambient temperatures. Further examination of the developed comminution and dividing procedure demonstrated that higher concentrations were measured in smaller sized particles, indicating that the accuracy and precision of OTA analyses could be affected by the particle size of ground wheat.
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Affiliation(s)
- S.A. Tittlemier
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, MB R3C 3G8, Canada;
| | - M. Roscoe
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, MB R3C 3G8, Canada;
| | - C. Kobialka
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, MB R3C 3G8, Canada;
| | - R. Blagden
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, MB R3C 3G8, Canada;
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21
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Zeolite Linde Type L as micro-solid phase extraction sorbent for the high performance liquid chromatography determination of ochratoxin A in coffee and cereal. J Chromatogr A 2012; 1237:46-54. [DOI: 10.1016/j.chroma.2012.03.031] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Revised: 03/09/2012] [Accepted: 03/09/2012] [Indexed: 11/23/2022]
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22
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Luque N, Ballesteros-Gómez A, van Leeuwen S, Rubio S. A simple and rapid extraction method for sensitive determination of perfluoroalkyl substances in blood serum suitable for exposure evaluation. J Chromatogr A 2012; 1235:84-91. [DOI: 10.1016/j.chroma.2012.02.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 02/09/2012] [Accepted: 02/17/2012] [Indexed: 10/28/2022]
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23
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Lee TP, Saad B, Khayoon WS, Salleh B. Molecularly imprinted polymer as sorbent in micro-solid phase extraction of ochratoxin A in coffee, grape juice and urine. Talanta 2012; 88:129-35. [DOI: 10.1016/j.talanta.2011.10.021] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 10/14/2011] [Accepted: 10/14/2011] [Indexed: 11/16/2022]
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24
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Tan ZJ, Li FF, Xing JM. Cloud point extraction of aloe anthraquinones based on non-ionic surfactant aqueous two-phase system. Nat Prod Res 2011; 26:1423-32. [DOI: 10.1080/14786419.2011.601415] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Zhi-Jian Tan
- a College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Fen-Fang Li
- a College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Jian-Min Xing
- a College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
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25
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26
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Tittlemier SA, Varga E, Scott PM, Krska R. Sampling of cereals and cereal-based foods for the determination of ochratoxin A: an overview. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 28:775-85. [PMID: 21623502 PMCID: PMC3118486 DOI: 10.1080/19440049.2011.559278] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 01/26/2011] [Indexed: 11/12/2022]
Abstract
The mycotoxin ochratoxin A (OTA) is known to be heterogeneously distributed both intrinsically (from one individual food item to the next) as well as distributionally (throughout a sample of individual food items) in cereals and cereal-based foods. Therefore, proper sampling and sample comminution are special challenges, but are prerequisites for obtaining sound analytical data. This paper outlines the issue of the sampling process for cereals and cereal-based foods, starting with the planning phase, followed by the sampling step itself and the formation of analytical samples. The sampling of whole grain and retail-level cereal-based foods will be discussed. Furthermore, possibilities to reduce sampling variance are presented.
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Affiliation(s)
- S A Tittlemier
- Canadian Grain Commission, Grain Research Laboratory, Winnipeg, MB, Canada.
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27
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Shephard G, Berthiller F, Burdaspal P, Crews C, Jonker M, Krska R, MacDonald S, Malone B, Maragos C, Sabino M, Solfrizzo M, van Egmond H, Whitaker T. Developments in mycotoxin analysis: an update for 2009-2010. WORLD MYCOTOXIN J 2011. [DOI: 10.3920/wmj2010.1249] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This review highlights developments in mycotoxin analysis and sampling over a period between mid-2009 and mid-2010. It covers the major mycotoxins aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxin, patulin, trichothecenes, and zearalenone. New and improved methods for mycotoxins continue to be published. Immunological-based method developments continue to be of wide interest in a broad range of formats. Multimycotoxin determination by LC-MS/MS is now being targeted at the specific ranges of mycotoxins and matrices of interest or concern to the individual laboratory. Although falling outside the main emphasis of the review, some aspects of natural occurrence have been mentioned, especially if linked to novel method developments.
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Affiliation(s)
- G. Shephard
- PROMEC Unit, Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa
| | - F. Berthiller
- Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Applied Life Sciences Vienna, Center for Analytical Chemistry, Christian Doppler Laboratory for Mycotoxin Research, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - P. Burdaspal
- National Centre for Food, Spanish Food Safety and Nutrition Agency, Carretera a Pozuelo Km 5.1, 28220 Majadahonda (Madrid), Spain
| | - C. Crews
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - M. Jonker
- RIKILT Institute of Food Safety, Cluster Natural Toxins & Pesticides, P.O. Box 230, 6700 AE Wageningen, The Netherlands
| | - R. Krska
- Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Applied Life Sciences Vienna, Center for Analytical Chemistry, Christian Doppler Laboratory for Mycotoxin Research, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - S. MacDonald
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - B. Malone
- Trilogy Analytical Laboratory, 870 Vossbrink Drive, Washington, MO 63090, USA
| | - C. Maragos
- USDA, ARS, National Center for Agricultural Utilization Research, 1815 N. University St, Peoria, IL 61604, USA
| | - M. Sabino
- Instituto Adolfo Lutz, Av Dr Arnaldo 355, 01246-902 São Paulo/SP, Brazil
| | - M. Solfrizzo
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/o, 70126 Bari, Italy
| | - H. van Egmond
- RIKILT Institute of Food Safety, Cluster Natural Toxins & Pesticides, P.O. Box 230, 6700 AE Wageningen, The Netherlands
| | - T. Whitaker
- Biological and Agricultural Engineering Department, N.C. State University, P.O. Box 7625, Raleigh, NC 27695-7625, USA
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Molecularly imprinted polymers for ochratoxin a extraction and analysis. Toxins (Basel) 2010; 2:1536-53. [PMID: 22069649 PMCID: PMC3153256 DOI: 10.3390/toxins2061536] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Revised: 06/16/2010] [Accepted: 06/17/2010] [Indexed: 11/17/2022] Open
Abstract
Molecularly imprinted polymers (MIPs) are considered as polymeric materials that mimic the functionality of antibodies. MIPs have been utilized for a wide variety of applications in chromatography, solid phase extraction, immunoassays, and sensor recognition. In this article, recent advances of MIPs for the extraction and analysis of ochratoxins are discussed. Selection of functional monomers to bind ochratoxin A (OTA) with high affinities, optimization of extraction procedures, and limitations of MIPs are compared from different reports. The most relevant examples in the literature are described to clearly show how useful these materials are. Strategies on MIP preparation and schemes of analytical methods are also reviewed in order to suggest the next step that would make better use of MIPs in the field of ochratoxin research. The review ends by outlining the remaining issues and impediments.
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