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Ye D, Hao J, Zhang R, Zhou Y, Chen S, Zhang W, Zhao L, Xie J, Wang Z. Optimization of ultrasonic-assisted supramolecular solvent microextraction of coumarins from Cortex fraxini using response surface methodology combined with artificial neural network-genetic algorithm. J Chromatogr A 2024; 1717:464692. [PMID: 38320432 DOI: 10.1016/j.chroma.2024.464692] [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: 11/13/2023] [Revised: 01/16/2024] [Accepted: 01/27/2024] [Indexed: 02/08/2024]
Abstract
A simple, fast, and efficient ultrasonic-assisted supramolecular solvent microextraction combined with high performance liquid chromatography method was developed for the determination of coumarins in Cortex fraxini, including esculin, esculetin and fraxetin. In this study, a novel supramolecular solvent was prepared with 1-octanol, tetrahydrofuran and water for the first time, and its composition, viscosity, density, structure, and micromorphology were characterized. The prepared supramolecular solvent exhibited vesicular structures and had the characteristics of low viscosity. Through single-factor experiments, response surface methodology and artificial neural network-genetic algorithm, the optimal extraction conditions were obtained as follows: NaCl concentration of 1 mol mL-1, pH value of 10, solid-liquid ratio of 10:1, vortex time of 30 s, ultrasonic power of 100 W, ultrasonic temperature of 60 °C, ultrasonic time of 15 min, centrifugation speed of 5000 rpm, and centrifugation time of 1 min. The results demonstrated that the artificial neural network model exhibited maximum R-values of 0.98703, 0.97440, 0.99836, and 0.95447 for training, testing, validation, and all dataset, respectively. The minimum mean square errors were 0.75, 10.15, 1.99, and 2.63, respectively. This indicated that the predicted values were almost consistent with the actual values. Under the optimal conditions, the total extraction yields of target analytes reached 2.80 %. The calibration curves for each analyte exhibited excellent linearity within the linear range (r > 0.9993). The limits of detection and quantification ranged from 4.87 to 6.55 ng mL-1 and 16.24 to 21.84 ng mL-1, respectively. The recoveries ranged from 98.71 % to 111.01 % with relative standard deviations of less than 3.6 %. The present method had the advantages of short extraction time (15 min) and less solvent consumption (0.5 mL). The prepared supramolecular solvent was proved to have great potential in extracting coumarins from medicinal plants.
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Affiliation(s)
- Dingli Ye
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China; Department of Radiology, Jilin Cancer Hospital, Jinhu Road 1066, Changchun 130012, PR China
| | - Junqiang Hao
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China
| | - Rongxu Zhang
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China
| | - Yangyang Zhou
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China
| | - Shurong Chen
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China
| | - Weijian Zhang
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China
| | - Lei Zhao
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China
| | - Jiahan Xie
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China.
| | - Zhibing Wang
- College of Chemistry and Life Science, Changchun University of Technology, Yan'an Street 2055, Changchun 130012, PR China.
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Pochivalov A, Fedorova A, Yakimova N, Safonova E, Bulatov A. Primary amine citrate-based supramolecular designer solvent: Preconcentration of ochratoxin A for determination in foods by liquid chromatography. Anal Chim Acta 2024; 1285:341991. [PMID: 38057045 DOI: 10.1016/j.aca.2023.341991] [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: 07/26/2023] [Revised: 10/26/2023] [Accepted: 10/31/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Supramolecular solvents are nanostructured liquids that are separated from colloidal solutions of amphiphilic compounds as a result of self-assembly of amphiphiles and coacervation under changing conditions. They are considered to be designer solvents as their properties can be tailored to a specific analytical task by controlling the conditions of their formation (amphiphile, coacervation inducer, medium, concentration of components). The discovery of new extraction systems based on supramolecular solvents and their application to relevant analytical tasks are of great importance for the advancement of environmentally-friendly sample preparation. RESULTS A novel green liquid-phase microextraction approach involving in situ formation of 1-octylamine citrate followed by preconcentration of ochratoxin A from aqueous extract of food sample in supramolecular solvent droplets was developed. The extraction system was carefully characterized. The density of the solvent allowed it to be to retrieved from the extraction system by its solidification. The alkaline nature of the obtained extract allowed the use of acetic acid for its dissolution instead of more toxic organic solvents followed by high-performance liquid chromatography with fluorometric detection. An excellent extraction recovery of 99 % and a satisfactory enrichment factor of 8.3 were achieved. The limit of detection was 0.5 μg kg-1, while the calibration plot was linear over the range of 1.5-50 μg kg-1. Cereal and roasted coffee bean samples were successfully analyzed with a relative bias less than 20 %. SIGNIFICANCE In the present work, a phenomenon of supramolecular solvent formation based on primary amine citrate was presented for the first time. Tetrabutylammonium bromide was investigated as a coacervation agent in an extraction system, and possible interactions responsible for its ability to induce phase separation in a micellar solution of primary amine citrate were described. The critical micelle concentration of 1-octylamine citrate in aqueous solution of tetrabutylammonium bromide was firstly determined.
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Affiliation(s)
- Aleksei Pochivalov
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St, Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia.
| | - Anastasia Fedorova
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St, Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia
| | - Nina Yakimova
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St, Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia
| | - Evgenia Safonova
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St, Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia
| | - Andrey Bulatov
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St, Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia
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Yu Y, Pai N, Chen X, Wang B, Gao S, Ge D. Hexafluorobutanol primary alcohol ethoxylate-based supramolecular solvent formation and their application in direct microextraction of malachite green and crystal violet from lake sediments. Anal Bioanal Chem 2023; 415:5353-5363. [PMID: 37389597 DOI: 10.1007/s00216-023-04810-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 07/01/2023]
Abstract
A new type of hexafluorobutanol (HFB) primary alcohol ethoxylate (AEO)-based supramolecular solvent (SUPRAS) with density higher than water was prepared for the first time. HFB acted as AEO micelle-forming agent and density-regulating agent for SUPRAS formation. The prepared SUPARS was applied as extraction solvent for vortex-assisted direct microextraction of malachite green (MG) and crystal violet (CV) from lake sediment followed by high-performance liquid chromatographic determination. In the present work, SUPRASs prepared from AEO with different carbon chains as the amphiphiles and various coacervation agents were investigated. SUPARS formed from MOA-3 and HFB provided better extraction efficiency in comparison with other SUPRASs. Parameters influencing the extraction recovery of target analytes including the type and volume of AEO, volume of HFB, and vortex time were investigated and optimized. Under optimized conditions, linearity in the range of 2.0-400 μg g-1 for MG and 2.0-500 μg g-1 for CV with a correlation coefficient higher than 0.9947 was obtained. Limits of detection of 0.5 μg g-1 and relative standard deviations in the range of 0.9-5.8% were obtained. Compared to conventional extraction techniques for analysis of analytes in solid samples, the proposed method reduced sample usage and eliminated a primary extraction process by using a toxic organic solvent. The proposed method is simple, fast, and green and can be used for the analysis of target analytes in solid samples.
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Affiliation(s)
- Yang Yu
- Department of Chemical Science & Technology, Kunming University, Kunming, 650214, China
| | - Nanya Pai
- Department of Chemical Science & Technology, Kunming University, Kunming, 650214, China
| | - Xiaoya Chen
- Department of Chemical Science & Technology, Kunming University, Kunming, 650214, China
| | - Baoling Wang
- Department of Chemical Science & Technology, Kunming University, Kunming, 650214, China
| | - Shulin Gao
- Department of Chemical Science & Technology, Kunming University, Kunming, 650214, China
| | - Dandan Ge
- Department of Chemical Science & Technology, Kunming University, Kunming, 650214, China.
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Dalmaz A, Sivrikaya Özak S. Environmentally-friendly supramolecular solvent microextraction method for rapid identification of Sudan I-IV from food and beverages. Food Chem 2023; 414:135713. [PMID: 36821924 DOI: 10.1016/j.foodchem.2023.135713] [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: 10/16/2022] [Revised: 01/26/2023] [Accepted: 02/13/2023] [Indexed: 02/21/2023]
Abstract
A new ultrasonically assisted supramolecular solvent-based microextraction (UA-SUPRAS-ME) method has been reported. This technique is one of the green methods for rapid microextraction and determination of Sudan I, II, III and IV dyes from food and beverage samples and the study investigated the effects of various parameters such as centrifugation time, 1-octanol volume, pH, supramolecular solvent type, THF volume, ultrasonication time on the optimization of the microextraction process. Addition and recovery of the method were carried out at two different concentrations (10 and 100 ng mL-1) to food and beverage samples and the accuracy of the method was determined. Sudan I dye was detected in red pepper and hot sauce from food samples. Extraction recovery values were found between 90.6 % and 102.5 % which are promising compared to many other methods.
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Affiliation(s)
- Aslihan Dalmaz
- Department of Natural and Herbal Products/Cosmetic Products, Graduate Education Institute, Duzce University, 81620 Duzce, Turkey
| | - Sezen Sivrikaya Özak
- Department of Chemistry, Faculty of Art and Science, Duzce University, 81620 Duzce, Turkey.
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Zhavoronok MF, Vakh C, Bulatov A. Automated primary amine-based supramolecular solvent microextraction with monoterpenoid as coacervation agent before high-performance liquid chromatography. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.105085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Vortex-assisted sequential liquid-phase micro-extraction of E127 and E129 in foodstuffs and pharmaceuticals. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Magnetic deep eutectic solvent-based dispersive liquid-liquid microextraction for enantioselectively determining chiral mefentrifluconazole in cereal samples via ultra-high-performance liquid chromatography. Food Chem 2022; 391:133220. [PMID: 35597037 DOI: 10.1016/j.foodchem.2022.133220] [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: 08/14/2021] [Revised: 04/29/2022] [Accepted: 05/12/2022] [Indexed: 02/07/2023]
Abstract
A simple, rapid, and efficient pretreatment method of mefentrifluconazole enantiomers in cereal samples was established by dispersive liquid-liquid microextraction coupled with ultra-high-performance liquid chromatography-diode array detector (UHPLC-DAD). In this study, a novel ternary magnetic deep eutectic solvent (MDES) [octyltrimethylammonium bromide][cobalt chloride][acetic acid] was synthesized as the extractant. Acetic acid was used as the dispersant to promote the in situ dispersion of binary MDES [octyltrimethylammonium bromide][cobalt chloride]. The microdroplets of binary MDES containing mefentrifluconazole were separated by an external magnet. Device-assisted dispersion and time-consuming centrifugation steps were eliminated to ensure simplicity and rapidity of the pretreatment. Good linearity ranging from 0.01 μg g-1 to 2 μg g-1 was obtained. The extraction recovery varied from 82.9 to 95.0%. The limit of detection was 0.003 μg g-1. Finally, this established approach has been applied for the enantioselective detection of chiral mefentrifluconazole in corn, rice, wheat, millet, and sorghum samples.
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Chen H, Lu M, Huang X. Task specific adsorbent based on porous monolith for efficient capture of synthetic colorants in beverages and preserved fruits prior to chromatographic analysis. J Chromatogr A 2022; 1675:463144. [DOI: 10.1016/j.chroma.2022.463144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 10/18/2022]
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