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Xing L, Zhang Q, Liu J, Yu N, Jia Y. Determination of six short-chain fatty acids in rat feces using headspace solid-phase dynamic extraction coupled with GC-MS. J Sep Sci 2024; 47:e2400032. [PMID: 38937913 DOI: 10.1002/jssc.202400032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 06/29/2024]
Abstract
Short-chain fatty acids (SCFAs) are organic acids with carbon atoms less than six, released through fermentation products by intestinal microbiome, having multiple physiological activities. Considering weak acidity and high volatility, derivatization or liquid-liquid extraction is essential, which is time consuming. Headspace-solid-phase dynamic extraction (HS-SPDE) coupled with gas chromatography-mass spectrometry is automated and effortless to determine SCFAs in rat feces. The extraction procedure is performed by aspirating and discharging the headspace cyclically through a steel needle, coated with an inner polyethylene glycol sorbent. The key parameters of SPDE were optimized including coating type, incubation time and temperature, and number of extraction strokes. Besides, salting-out was conducted. Then, a method by HS-SPDE-GC-MS was established and validated. It only took 3-min incubation time, 4.5 min extraction time, and 13 min chromatographic separation in a run. The recovery, linearity, limit of quantification, and stability were evaluated. Then, the proposed method was applied to analyze rat feces including 18 rats with liver injury and 23 normal controls. Mann-Whitney U test indicated that the concentrations of six SCFAs in normal rat feces were higher than those with liver injury. This method provides a choice for fast, solvent-free, automated, and high-throughput analysis of SCFAs.
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Affiliation(s)
- Lihua Xing
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, P. R. China
| | - Qiang Zhang
- Department of Criminal Science and Technology, Henan Police College, Zhengzhou, P. R. China
| | - Juan Liu
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, P. R. China
- Science and Technology Experimental Center, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China
| | - Nianjun Yu
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, P. R. China
| | - Yiqun Jia
- Science and Technology Experimental Center, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China
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Zang Y, Hang N, Sui J, Duan S, Zhao W, Tao J, Li S. Magnetic Persimmon Leaf Composite: Preparation and Application in Magnetic Solid-Phase Extraction of Pesticides in Water Samples. Molecules 2023; 29:45. [PMID: 38202628 PMCID: PMC10780136 DOI: 10.3390/molecules29010045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
In recent years, the utilization of biomass materials for the removal and detection of water pollutants has garnered considerable attention. This study introduces, for the first time, the preparation of Fe3O4/persimmon leaf magnetic biomass composites. The magnetic composites were employed in a magnetic solid-phase extraction method, coupled with gas chromatography-electron capture detection (GC-ECD), for the analysis of four pesticides (trifluralin, triadimefon, permethrin, and fenvalerate) in environmental water samples. The innovative magnetic persimmon leaf composites were synthesized by in situ generation of Fe3O4 nanoparticles through coprecipitation and loaded onto persimmon leaves. These composites exhibit superparamagnetism with a saturation magnetization of 12.8 emu g-1, facilitating rapid phase separation using a magnetic field and reducing the extraction time to 10 min. Desorption can be achieved within 30 s by aspirating 20 times, eliminating the need for time-consuming and labor-intensive experimental steps like filtration and centrifugation. The specific surface area of the magnetic composite adsorbent increased from 1.3279 m2 g-1 for the original persimmon leaf to 5.4688 m2 g-1. The abundant hydroxyl and carboxyl groups on the composites provide ample adsorption sites, resulting in adsorption capacities ranging from 55.056 mg g-1 to 73.095 mg g-1 for the studied pesticides. The composites exhibited extraction recoveries ranging from 80% to 90% for the studied pesticides. Compared to certain previously reported MSPE methods, this approach achieves equivalent or higher extraction recoveries in a shorter operation time, demonstrating enhanced efficiency and convenience. Good linearity of the target analytes was obtained within the range of 0.75-1500 μg L-1, with a determination of coefficient (R2) greater than 0.999. These findings contribute to the use of magnetic persimmon leaf biomass materials as effective and environmentally friendly adsorbents for pollutant determination in water samples.
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Affiliation(s)
| | | | | | | | | | | | - Songqing Li
- Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, No. 35 Qinghua East Road, Beijing 100083, China; (Y.Z.); (N.H.); (J.S.); (S.D.); (W.Z.); (J.T.)
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Naumkina VN, Lyamina VM, Zhinzhilo VA, Uflyand IE. Determination of Tetracycline Antibiotics in Milk by Solid-Phase Extraction Using a Coordination Polymer Based on Cobalt Trimesinate as a Sorbent. Polymers (Basel) 2023; 15:4539. [PMID: 38231966 PMCID: PMC10708372 DOI: 10.3390/polym15234539] [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: 10/21/2023] [Revised: 11/18/2023] [Accepted: 11/24/2023] [Indexed: 01/19/2024] Open
Abstract
The coordination polymer was obtained based on cobalt trimesinate. It was characterized by elemental analysis, IR spectroscopy, X-ray diffraction analysis and scanning electron microscopy. The polymer was studied as a sorbent for solid-phase extraction of tetracycline antibiotics. Cobalt trimesinate had a high adsorption capacity (400 mg/g). Antibiotic adsorption followed the pseudo-second-order kinetic model and the Freundlich isotherm model. The process proceeded spontaneously, as indicated by the calculated thermodynamic parameters. The resulting coordination polymer has good stability and recyclability. The possibility of using cobalt trimesinate for the determination of tetracycline in various milk samples was investigated. This work holds great promise for the development and application of a cobalt trimesinate-based coordination polymer for use in sample preparation to replace the time-consuming vacuum evaporation procedure with a relatively simple solid-phase extraction procedure.
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Affiliation(s)
| | | | | | - Igor E. Uflyand
- Department of Chemistry, Southern Federal University, Rostov-on-Don 344090, Russia (V.A.Z.)
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Temerdashev ZA, Musorina TN, Ovsepyan SK, Korpakova IG. Determination of Polycyclic Aromatic Hydrocarbons in Soils and Bottom Sediments by Gas Chromatography–Mass Spectrometry with QuEChERS Sample Preparation. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822050136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gu YX, Yan TC, Yue ZX, Liu FM, Cao J, Ye LH. Recent developments and applications in the microextraction and separation technology of harmful substances in a complex matrix. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yan M, Gao F, Chen M, Hu Q, Yang Y, Chen K, Wang P, Lei H, Ma Q. Synergistic Combination of Facile Thiol-Maleimide Derivatization and Supramolecular Solvent-Based Microextraction for UHPLC-HRMS Analysis of Glutathione in Biofluids. Front Chem 2021; 9:786627. [PMID: 34957048 PMCID: PMC8695729 DOI: 10.3389/fchem.2021.786627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/15/2021] [Indexed: 11/13/2022] Open
Abstract
Glutathione (GSH) is the most abundant non-protein thiol in biofluids, enabling diverse physiological functions. Among the proposed methods for GSH detection, ultra-high-performance liquid chromatography (UHPLC) coupled with high-resolution mass spectrometry (HRMS) has the advantages of high sensitivity and efficiency. In this study, a novel analytical method was developed for the determination of GSH using supramolecular solvent (SUPRAS)-based dispersive liquid–liquid microextraction (DLLME) and UHPLC–HRMS. N-Laurylmaleimide was dissolved in tetrahydrofuran, which served three functions: 1) precipitate the proteins present in the biofluid sample, 2) provide a reaction environment for derivatization, and 3) enable the use of SUPRAS as the dispersing agent. Critical parameters were optimized based on single factor testing and response surface methodology. The established method was validated in terms of linearity, accuracy, precision, and successful quantitative analysis of GSH in saliva, urine, and plasma samples. Experimental results showed that SUPRAS as an extraction solvent was particularly suitable for the extraction of GSH from complex matrices. The current study provides a useful tool for accurate measurements of GSH concentrations, which could potentially be used for clinical diagnostics.
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Affiliation(s)
- Mengmeng Yan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.,Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Feng Gao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Meng Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Qi Hu
- Chinese Academy of Inspection and Quarantine, Beijing, China.,School of Chemical Engineering, Dalian University of Technology, Dalian, China
| | - Yuqin Yang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Kedian Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Penglong Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Haimin Lei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Qiang Ma
- Chinese Academy of Inspection and Quarantine, Beijing, China
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Varma NN, Naidu CG, Ramachandra B, Swamy AM. HPLC Bioassay of Elvitegravir using a Molecularly Imprinted Polymer Based Solid Phase Extraction in RAT Plasma: Application to Pharmacokinetic Studies. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821100129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Liu Y, Lian Z, Li F, Majid A, Wang J. Review on molecular imprinting technology and its application in pre-treatment and detection of marine organic pollutants. MARINE POLLUTION BULLETIN 2021; 169:112541. [PMID: 34052587 DOI: 10.1016/j.marpolbul.2021.112541] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 05/17/2023]
Abstract
Molecular imprinting technology (MIT) has been considered as an attractive method to produce artificial receptors with the memory of size, shape and functional groups of the templates and has become an emerging technique with the potential in various fields due to recognitive specificity, high efficient selectivity and mechanical stability, which can effectively remove background interference and is suitable for the pre-treatment and analysis of trace level substances in complex matrix samples. Nearly 100 papers about the application of MIT in the detection of marine pollutants were found through Science Citation Index Expanded (SCIE). On this basis, combined with the application of MIT in other fields, the pre-treatment process of marine environmental samples was summarized and the potential of four types of different molecularly imprinted materials in the pre-treatment and detection of marine organic pollutants (including antibiotics, triazines, organic dyes, hormones and shellfish toxins) samples was evaluated, which provides the innovative configurations and progressive applications for the analysis of marine samples, and also highlights future trends and perspectives in the emerging research field.
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Affiliation(s)
- Yuhua Liu
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Ziru Lian
- Marine College, Shandong University, Weihai 264209, China
| | - Fangfang Li
- Shandong Institute for Food and Drug Control, Jinan 250000, China
| | - Abdul Majid
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Jiangtao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
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Vershinin VI, Usova SV. Extraction–Chromatographic Determination of the Total Concentration of Monocyclic Arenes С
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in Wastewater. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821010159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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