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Sun H, Zou Y, Kaw HY, Wang L, Wang G, Zhou JL, Meng LY, Li D. Carbon Nanofibers-Based Nanoconfined Liquid Phase Filtration for the Rapid Removal of Chlorinated Pesticides from Ginseng Extracts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:9434-9442. [PMID: 34374286 DOI: 10.1021/acs.jafc.1c02973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A rapid nanoconfined liquid phase filtration system (NLPF) based on solvent-confined carbon nanofibers/carbon fiber materials (CNFs/CFs) was proposed to effectively remove chlorinated pesticides from ginsenosides-containing ginseng extracts. A series of major parameters that may affect the separation performance of the CNFs-NLPF method were extensively investigated, including the water solubility of nanoconfined solvents, filtration rate, ethanol content of the ginseng extracts, and reusability of the material for repeated adsorption. The developed method showed a high removal efficiency of pesticides (85.5-97.5%), high retainment rate of ginsenosides (95.4-98.9%), and consistent reproducibility (RSD < 11.8%). Furthermore, the feasibility of the CNFs-NLPF technique to be scaled-up for industrial application was systematically explored by analyzing large-volume ginseng extract (1 L), which also verified its excellent modifiable characteristic. This filtration method exhibits promising potential as a practical tool for removing pesticide residues and other organic pollutants in food samples to assure food quality and safeguard human health.
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Affiliation(s)
- Huaze Sun
- Department of Chemistry, Yanbian University, Park Road 977, Yanji city, Jilin 133002, P. R. China
| | - Yilin Zou
- Department of Chemistry, Yanbian University, Park Road 977, Yanji city, Jilin 133002, P. R. China
| | - Han Yeong Kaw
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, P. R. China
| | - Liyuan Wang
- Department of Chemistry, Yanbian University, Park Road 977, Yanji city, Jilin 133002, P. R. China
| | - Gang Wang
- Department of Chemistry, Yanbian University, Park Road 977, Yanji city, Jilin 133002, P. R. China
| | - John L Zhou
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, Ultimo 2007 Australia
| | - Long-Yue Meng
- Department of Environmental Science, Yanbian University, Park Road 977, Yanji City, Jilin 133002, P. R. China
| | - Donghao Li
- Department of Chemistry, Yanbian University, Park Road 977, Yanji city, Jilin 133002, P. R. China
- Interdisciplinary of Biological Functional Molecules, College of Integration Science, Yanbian University, Park Road 977, Yanji city, Jilin 133002, P. R. China
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You JB, Lohse D, Zhang X. Surface nanodroplet-based nanoextraction from sub-milliliter volumes of dense suspensions. LAB ON A CHIP 2021; 21:2574-2585. [PMID: 34008650 DOI: 10.1039/d1lc00139f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A greener analytical technique for quantifying compounds in dense suspensions is needed for wastewater and environmental analysis, chemical or bio-conversion process monitoring, biomedical diagnostics, and food quality control, among others. In this work, we introduce a green, fast, one-step method called nanoextraction for extraction and detection of target analytes from sub-milliliter dense suspensions using surface nanodroplets without toxic solvents and pre-removal of the solid contents. With nanoextraction, we achieve a limit of detection (LOD) of 10-9 M for a fluorescent model analyte obtained from a particle suspension sample. The LOD is lower than that in water without particles (10-8 M), potentially due to the interaction of particles and the analyte. The high particle concentration in the suspension sample, thus, does not reduce the extraction efficiency, although the extraction process was slowed down up to 5 min. As a proof of principle, we demonstrate the nanoextraction for the quantification of model compounds in wastewater slurry containing 30 wt% solids and oily components (i.e. heavy oils). The nanoextraction and detection technology developed in this work may be used in fast analytical technologies for complex slurry samples in the environment, industrial waste, or in biomedical diagnostics.
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Affiliation(s)
- Jae Bem You
- Department of Chemical and Materials Engineering, University of Alberta, Alberta T6G 1H9, Canada. and Physics of Fluids Group, Max Planck Center Twente for Complex Fluid Dynamics, JM Burgers Center for Fluid Dynamics, Mesa+, Department of Science and Technology, University of Twente, Enschede 7522 NB, The Netherlands
| | - Detlef Lohse
- Physics of Fluids Group, Max Planck Center Twente for Complex Fluid Dynamics, JM Burgers Center for Fluid Dynamics, Mesa+, Department of Science and Technology, University of Twente, Enschede 7522 NB, The Netherlands
| | - Xuehua Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Alberta T6G 1H9, Canada. and Physics of Fluids Group, Max Planck Center Twente for Complex Fluid Dynamics, JM Burgers Center for Fluid Dynamics, Mesa+, Department of Science and Technology, University of Twente, Enschede 7522 NB, The Netherlands
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Guiñez M, Escudero L, Mandelli A, Martinez LD, Cerutti S. Volcanic ashes as a source for nitrated and oxygenated polycyclic aromatic hydrocarbon pollution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:16972-16982. [PMID: 32146659 DOI: 10.1007/s11356-020-08130-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
In this study, a novel, simple, and highly sensitive analytical procedure for the quantitative evaluation of oxygenated and nitrated polycyclic aromatic hydrocarbons in volcanic ash samples based on dispersive solid-liquid microextraction (DSLME) coupled to ultra high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was developed. Diverse chemometric tools were applied to optimize DSLME working conditions. Thus, a linear calibration curve for all the target analytes in the concentration range from 0.01 to 100 μg g-1 (r2 > 0.994) was obtained. The limits of detection for all the compounds were between 14.6 and 56.0 pg g-1, with high reproducibility (relative standard deviation (RSD) was below 8.1% for all the analytes). Additionally, recoveries ranged from 94.2 to 100%. The applicability of the method was evaluated and the feasibility of the existence of nitrated and oxygenated-PAHs in volcanic ashes at ultra-trace levels was demonstrated, which reveals an unknown source of distribution of these pollutants to the environment. Graphical Abstract.
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Affiliation(s)
- María Guiñez
- Instituto de Química de San Luis (CCT-San Luis) - Área de Química Analítica, Facultad de Química Bioquímica y Farmacia, Laboratorio de Espectrometría de Masas, Universidad Nacional de San Luis, Bloque III, Ejército de los Andes 950, CP5700, San Luis, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917, C1033AAJ, Buenos Aires, Argentina
| | - Luis Escudero
- Instituto de Química de San Luis (CCT-San Luis) - Área de Química Analítica, Facultad de Química Bioquímica y Farmacia, Laboratorio de Espectrometría de Masas, Universidad Nacional de San Luis, Bloque III, Ejército de los Andes 950, CP5700, San Luis, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917, C1033AAJ, Buenos Aires, Argentina
| | - Alejandro Mandelli
- Instituto de Química de San Luis (CCT-San Luis) - Área de Química Analítica, Facultad de Química Bioquímica y Farmacia, Laboratorio de Espectrometría de Masas, Universidad Nacional de San Luis, Bloque III, Ejército de los Andes 950, CP5700, San Luis, Argentina
| | - Luis D Martinez
- Instituto de Química de San Luis (CCT-San Luis) - Área de Química Analítica, Facultad de Química Bioquímica y Farmacia, Laboratorio de Espectrometría de Masas, Universidad Nacional de San Luis, Bloque III, Ejército de los Andes 950, CP5700, San Luis, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917, C1033AAJ, Buenos Aires, Argentina
| | - Soledad Cerutti
- Instituto de Química de San Luis (CCT-San Luis) - Área de Química Analítica, Facultad de Química Bioquímica y Farmacia, Laboratorio de Espectrometría de Masas, Universidad Nacional de San Luis, Bloque III, Ejército de los Andes 950, CP5700, San Luis, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917, C1033AAJ, Buenos Aires, Argentina.
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