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He J, Liu J, Liu Y, Liyin Z, Wu X, Song G, Hou Y, Wang R, Zhao W, Sun H. Trace carbonyl analysis in water samples by integrating magnetic molecular imprinting and capillary electrophoresis. RSC Adv 2021; 11:32841-32851. [PMID: 35493566 PMCID: PMC9042219 DOI: 10.1039/d1ra05084b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/21/2021] [Indexed: 12/28/2022] Open
Abstract
In order to obtain high derivatization efficiency, the overuse of derivative agent 2,4-dinitrophenylhydrazine (2,4-DNPH) is necessary for carbonyl detection. But, the 2,4-DNPH residue will cause background interferences and limit the pre-concentration factor of the target analytes. In order to overcome the bottleneck problems, the magnetic molecularly imprinted polymer based solid-phase extraction (MMIPs-SPE) method was developed with 2,4-dinitroaniline (2,4-DNAN) as the dummy template. The characteristics and selectivity of the MMIPs were investigated. Under the optimized conditions, the enrichment of carbonyls-DNPH derivatives with simultaneous removal of the surplus 2,4-DNPH was achieved. By coupling with capillary electrophoresis (CE), a satisfactory analytical performance was obtained with the detection limit ranging from 1.2 to 8.7 μg L−1 for 8 carbonyls. The MMIPs-SPE-CE method was applied successfully for the carbonyl assessment in stream water, tap water and bottled water. In addition, the migration of carbonyls in bottled drinking water was investigated under UV irradiation and heating. By integrating MMIPs-SPE method and CE, the enrichment of carbonyls-DNPH derivatives with simultaneous removal of the surplus derivative agent 2,4-DNPH can be achieved.![]()
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Affiliation(s)
- Jiahua He
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Jiawei Liu
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Yangyang Liu
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Zhengxi Liyin
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Xiaoyi Wu
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Gang Song
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Yeyang Hou
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Ruixi Wang
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China
| | - Wenfeng Zhao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Hui Sun
- College of Environmental Science and Engineering, Guangzhou University Guangzhou 510006 Guangdong China .,Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources Guangzhou 510006 Guangdong China
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2
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Darvishnejad F, Raoof JB, Ghani M. In-situ synthesis of nanocubic cobalt oxide @ graphene oxide nanocomposite reinforced hollow fiber-solid phase microextraction for enrichment of non-steroidal anti-inflammatory drugs from human urine prior to their quantification via high-performance liquid chromatography-ultraviolet detection. J Chromatogr A 2021; 1641:461984. [PMID: 33611121 DOI: 10.1016/j.chroma.2021.461984] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 01/30/2021] [Accepted: 02/07/2021] [Indexed: 01/15/2023]
Abstract
The in-situ synthesis and application of nanocubic Co3O4-coated graphene oxide (Co3O4@ GO) was introduced for the first time to present a cost-effective, stable and convenient operation and a simple device for hollow fiber solid-phase microextraction (HF-SPME) of four selected nonsteroidal anti-inflammatory drugs (NSAIDs) including diclofenac, mefenamic acid, ibuprofen and indomethacin. The extracted analytes were desorbed by an appropriate organic solvent and analyzed via high-performance liquid chromatography-ultraviolet detection (HPLC-UV). The prepared sorbent was approved using different characterization methods such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The variables effective on the Co3O4@GO-HF-SPME method including extraction time, desorption time, desorption solvent volume, sample pH, stirring rate and ionic strength were screened via Plackett-Burman design and then optimized by Box-Behnken design. Under optimal condition, the calibration curves were linear within the range of 1.0-200.0 µg L-1 of analyte concentration with detection limits of 0.18-1.1 µg L-1 and the relative standard deviations less than 10.1%. The limits of quantification (LOQs) were in the range of 0.60-3.67 µg L-1. Matrix effect was not observed with this method; therefore, standard addition is not necessary for quantification of target compounds. The enrichment factors were obtained in the range of 49-68. The relative recoveries of the urine sample analysis were calculated in the range of 93-102%. Finally, the presented method exhibited good sensitivity, excellent repeatability, high reusability and acceptable precision, which will be a promising method to analyze various nonsteroidal anti-inflammatory drugs in urine samples.
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Affiliation(s)
- Fatemeh Darvishnejad
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Jahan Bakhsh Raoof
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
| | - Milad Ghani
- Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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3
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Fang Z, Gong J, Jing X, Wang T, Ye J, Chu Q, Huang D. Zeolitic imidazolate framework-8 reinforced hollow-fiber liquid-phase microextraction of free urinary biomarkers of whole grain intake followed by CE analysis. J Sep Sci 2020; 43:2889-2896. [PMID: 32363807 DOI: 10.1002/jssc.202000120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/09/2020] [Accepted: 04/30/2020] [Indexed: 01/20/2023]
Abstract
The whole grain intake is closely associated with human health. In this work, three-phase dynamic hollow-fiber liquid-phase microextraction reinforced with 0.10 mg/mL 30 nm zeolitic imidazolate framework-8 nanoparticles was introduced for purification and enrichment of free urinary metabolite biomarkers of whole grain intake. Eight milliliters of HCl (pH 3.00) and 8 μL of 300 mM NaOH solutions were used as the donor and acceptor phases, respectively. The temperature and stirring rate were kept at 25℃ and 500 rpm, and the extraction time was 40 min. The extraction process required no further desorption, and the resultant extract was directly used for electrophoretic analysis without derivatization. Based on the synergistic effect of hollow-fiber liquid-phase microextraction and the electrophoretic stacking, the enrichment factors of 3,5-dihydroxybenzoic acid and 3-(3,5-dihydroxyphenyl)-1-propionic acid reached 1018-1034 times, and their limits of detection achieved 0.33-0.67 ng/mL (S/N = 3) in urine matrix. The developed method has been successfully used for urine analysis, and the sample recovery data were in the range of 97.0-103.5%. This developed method provided an attractive alternative for the determination of urinary metabolite biomarkers of whole grain intake due to its sensitive, fast, low-cost, and environmental-friendly features.
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Affiliation(s)
- Zhonghui Fang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Jiacheng Gong
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Xiaofeng Jing
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Tingting Wang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Jiannong Ye
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Qingcui Chu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Dongping Huang
- Shanghai Putuo District People's Hospital, Shanghai, P. R. China
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4
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Bibliometric review of research trends on disinfection by-products in drinking water during 1975–2018. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116741] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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5
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Li E, Jie K, Liu M, Sheng X, Zhu W, Huang F. Vapochromic crystals: understanding vapochromism from the perspective of crystal engineering. Chem Soc Rev 2020; 49:1517-1544. [PMID: 32016241 DOI: 10.1039/c9cs00098d] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Vapochromic materials, which undergo colour and/or emission changes upon exposure to certain vapours or gases, have received increasing attention recently because of their wide range of applications in, e.g., chemical sensors, light-emitting diodes, and environmental monitors. Vapochromic crystals, as a specific kind of vapochromic materials, can be investigated from the perspective of crystal engineering to understand the mechanism of vapochromism. Moreover, understanding the vapochromism mechanism will be beneficial to design and prepare task-specific vapochromic crystals as one kind of low-cost 'electronic nose' to detect toxic gases or volatile organic compounds. This review provides important information in a broad scientific context to develop new vapochromic materials, which covers organometallic or coordination complexes and organic crystals, as well as the different mechanisms of the related vapochromic behaviour. In addition, recent examples of supramolecular vapochromic crystals and metal-organic-framework (MOFs) vapochromic crystals are introduced.
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Affiliation(s)
- Errui Li
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
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Luo D, Fang Z, Zhao X, Ma Y, Ye J, Chu Q. Salt-effect enhanced hollow-fiber liquid-phase microextraction of glutathione in human saliva followed by miniaturized capillary electrophoresis with amperometric detection. Electrophoresis 2020; 41:328-334. [PMID: 31884689 DOI: 10.1002/elps.201900390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 12/21/2019] [Accepted: 12/23/2019] [Indexed: 12/19/2022]
Abstract
A hollow-fiber liquid-phase microextraction (HF-LPME) method was established for purification and enrichment of glutathione (GSH) in human saliva followed by a miniaturized capillary electrophoresis with amperometric detection system (mini-CE-AD). Based on regulating isoelectric point and increasing salt effect to modify donor phase, HF-LPME could provide high enrichment efficiency for GSH up to 471 times, and the extract was directly injected for mini-CE-AD analysis. The salt-effect enhanced HF-LPME/mini-CE-AD method has been successfully applied to saliva analysis, and acceptable LOD (0.46 ng/mL, S/N = 3) and recoveries (92.7-101.3%) could be obtained in saliva matrix. The sample pretreatment of this developed method was simple and required no derivatization, providing a potential alternative for non-invasive fluid analysis using portable instrument.
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Affiliation(s)
- Dan Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Zhonghui Fang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Xiaoshuang Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Yaolu Ma
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Jiannong Ye
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
| | - Qingcui Chu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, P. R. China
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7
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Fast Determination of Main Bioamines and Precursor Amino Acids in Beer by Miniaturized Electrophoresis Using Gold Nanoparticle Composite Electrode. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1395-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Li E, Jie K, Zhou Y, Zhao R, Zhang B, Wang Q, Liu J, Huang F. Aliphatic Aldehyde Detection and Adsorption by Nonporous Adaptive Pillar[4]arene[1]quinone Crystals with Vapochromic Behavior. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23147-23153. [PMID: 29916689 DOI: 10.1021/acsami.8b06396] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The detection and adsorption of volatile low-molecular-weight aliphatic aldehydes is of significance, owing to their physical volatility, chemical toxicity, and widespread applications in chemical industrial processes. Here, nonporous adaptive pillar[4]arene[1]quinone (EtP4Q1) crystals with vapochromic behavior are used for the volatile aliphatic aldehyde uptake and sensing. When desolvated EtP4Q1 crystals (EtP4Q1α) are exposed to aliphatic aldehydes with different carbon chain lengths, they quantitatively adsorb vapors of these aldehydes, accompanied by different color changes. Crystal structure analyses show that the structure of EtP4Q1 transforms from EtP4Q1α into the corresponding new structures after the adsorption of these aldehydes, which leads to different color changes. The selectivity of EtP4Q1α crystals, which function as both sensors and adsorbents upon exposure to mixed aldehyde vapors, is also explored. Finally, it is demonstrated that EtP4Q1α crystals can be recycled many times without loss of performance.
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Wuethrich A, Quirino JP. Derivatisation for separation and detection in capillary electrophoresis (2015-2017). Electrophoresis 2017; 39:82-96. [PMID: 28758685 DOI: 10.1002/elps.201700252] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 02/01/2023]
Abstract
Derivatisation is an integrated part of many analytical workflows to enable separation and detection of the analytes. In CE, derivatisation is adapted in the four modes of pre-capillary, in-line, in-capillary, and post-capillary derivatisation. In this review, we discuss the progress in derivatisation from February 2015 to May 2017 from multiple points of view including sections about the derivatisation modes, derivatisation to improve the analyte separation and analyte detection. The advancements in derivatisation procedures, novel reagents, and applications are covered. A table summarising the 46 reviewed articles with information about analyte, sample, derivatisation route, CE method and method sensitivity is provided.
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Affiliation(s)
- Alain Wuethrich
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland, Brisbane, QLD, Australia
| | - Joselito P Quirino
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences-Chemistry, University of Tasmania, Hobart, TAS, Australia
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Zheng Y, Wang T, Kong J, Ma Y, Heng Y, Ren Y, Ye J, Chu Q. Electrochemical Determination of SalivaryN-Acetylneuraminic Acid by Miniaturized Capillary Electrophoresis Coupled with Sample Stacking. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600189] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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