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Zhu X, Wang K, Liu Z, Wang J, Wu E, Yu W, Zhu X, Chu C, Chen B. Probing Molecular-Level Dynamic Interactions of Dissolved Organic Matter with Iron Oxyhydroxide via a Coupled Microfluidic Reactor and an Online High-Resolution Mass Spectrometry System. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:2981-2991. [PMID: 36749182 DOI: 10.1021/acs.est.2c06816] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The interactions between dissolved organic matter (DOM) and iron (Fe) oxyhydroxide are crucial in regulating the biogeochemical cycling of nutrients and elements, including the preservation of carbon in soils. The mechanisms of DOM molecular assembly on mineral surfaces have been extensively studied at the mesoscale with equilibrium experiments, yet the molecular-level evolution of the DOM-mineral interface under dynamic interaction conditions is not fully understood. Here, we designed a microfluidic reactor coupled with an online solid phase extraction (SPE)-LC-QTOF MS system to continually monitor the changes in DOM composition during flowing contact with Fe oxyhydroxide at circumneutral pH, which simulates soil minerals interacting with constant DOM input. Time-series UV-visible absorption spectra and mass spectrometry data showed that after aromatic DOM moieties were first preferentially sequestered by the pristine Fe oxyhydroxide surface, the adsorption of nonaromatic DOM molecules with greater hydrophobicity, lower acidity, and lower molecular weights (<400) from new DOM solutions was favored. This is accompanied by a transition from mineral surface chemistry-dominated adsorption to organic-organic interaction-dominated adsorption. These findings provide direct molecular-level evidence to the zonal model of DOM assembly on mineral surfaces by taking the dynamics of interfacial interactions into consideration. This study also shows that coupled microfluidics and online high-resolution mass spectrometry (HRMS) system is a promising experimental platform for probing microscale environmental carbon dynamics by integrating in situ reactions, sample pretreatment, and automatic analysis.
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Affiliation(s)
- Xiangyu Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Kun Wang
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Zhengzheng Liu
- Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Zhejiang Ecological and Environmental Monitoring Center, Hangzhou, Zhejiang 310012, China
| | - Jing Wang
- Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Zhejiang Ecological and Environmental Monitoring Center, Hangzhou, Zhejiang 310012, China
| | - Enhui Wu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Wentao Yu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Xiaoying Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Chiheng Chu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
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Burdette TC, Frossard AA. Characterization of seawater and aerosol particle surfactants using solid phase extraction and mass spectrometry. J Environ Sci (China) 2021; 108:164-174. [PMID: 34465430 DOI: 10.1016/j.jes.2021.01.026] [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: 09/12/2020] [Revised: 01/20/2021] [Accepted: 01/22/2021] [Indexed: 06/13/2023]
Abstract
Surface-active organic molecules (surfactants) may influence the ability of an aerosol particle to act as a cloud condensation nuclei by reducing its surface tension. One source of organic mass in aerosol particles, which may also contain surfactants, is bubble bursting on the sea surface. In order to directly compare these molecules in the ocean and aerosol particles, we developed a method using multiple solid phase extractions and high resolution mass spectrometry to characterize surface active organic molecules in both. This method has extraction efficiencies greater than 85%, 75%, and 60% for anionic, cationic, and nonionic surfactant standards, respectively. In this study, we demonstrate the presence of three ionic classes of surface active organics in atmospheric aerosol particles and estuarine water from Skidaway Island, GA. With this extraction method, organic molecules from both estuarine water and atmospheric aerosol particles significantly reduced surface tension of pure water (surface tension depression of ~ 18 mN/m) and had high ratios of hydrogen to carbon (H/C) and low ratios of oxygen to carbon (O/C), indicative of surfactants. While previous work has observed a larger fraction of anionic surface active organics in seawater and marine aerosol particles, here we show cationic surface active organics may make up a large fraction of the total surface active molecules in estuarine water (43%-47%).
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Affiliation(s)
- Tret C Burdette
- Department of Chemistry, University of Georgia, 140 Cedar Street, Athens, GA, 30606, USA
| | - Amanda A Frossard
- Department of Chemistry, University of Georgia, 140 Cedar Street, Athens, GA, 30606, USA.
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3
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Lohse M, Blaser SRGA, Vetterlein D, Schlüter S, Oburger E, Reemtsma T, Lechtenfeld OJ. Online Nano Solid Phase Extraction Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry Workflow to Analyze Small Scale Gradients of Soil Solution Organic Matter in the Rhizosphere. Anal Chem 2020; 92:10442-10449. [PMID: 32628457 DOI: 10.1021/acs.analchem.0c00946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A new method combining online nano solid phase extraction coupled with Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) was developed to extract and analyze organic matter (OM) from microliter volumes of salt containing soil solution samples. This approach allows the reproducible analysis of only minute amounts of organic carbon (down to 10 ng C) without the need of further sample preparation. The new method was applied to unravel developing small-scale patterns of dissolved organic matter (DOM) in soil solutions of a soil column experiment in which Zea mays plants were grown for 3 weeks. Soil solution was sampled by micro suction cups from the undisturbed soil-root system once a week. Growth of the root system and, hence, position of individual roots relative to the suction cups was followed by X-ray computed tomography (X-ray CT). Our method makes it possible to resolve the chemical complexity of soil solution OM (up to 4300 molecular formulas from 2.5 μL sample). This allows to observe chemical gradients in the rhizosphere on a molecular level over time. The increasing influence of roots on soil solution OM is visible from higher molecular masses, an increasing degree of oxygenation and a higher fraction of formulas containing heteroatoms. The online nano solid phase extraction-FT-ICR-MS method provides novel insight into the processes affecting DOM in the rhizosphere, such as root exudation, microbial processes, and soil organic matter stabilization.
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Affiliation(s)
- M Lohse
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany
| | - S R G A Blaser
- Department of Soil System Science, Helmholtz Centre for Environmental Research - UFZ, 06120, Halle, Germany
| | - D Vetterlein
- Department of Soil System Science, Helmholtz Centre for Environmental Research - UFZ, 06120, Halle, Germany.,Institute of Agricultural and Nutritional Sciences, Martin-Luther-University Halle-Wittenberg, Von-Seckendorff-Platz 3, 06120 Halle (Saale), Germany
| | - S Schlüter
- Department of Soil System Science, Helmholtz Centre for Environmental Research - UFZ, 06120, Halle, Germany
| | - E Oburger
- Institute of Soil Research, University of Natural Resources and Life Sciences, Vienna - BOKU, 3430 Tulln an der Donau Austria
| | - T Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany.,Institute of Analytical Chemistry, University of Leipzig, 04103, Leipzig, Germany
| | - O J Lechtenfeld
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany.,ProVIS - Centre for Chemical Microscopy, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany
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4
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Li Q, Tang F, Huo X, Huang X, Zhang Y, Wang X, Zhang X. Native State Single-Cell Printing System and Analysis for Matrix Effects. Anal Chem 2019; 91:8115-8122. [DOI: 10.1021/acs.analchem.9b00344] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Qi Li
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Fei Tang
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Xinming Huo
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Xi Huang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yan Zhang
- Department of Electrical and Computer Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Xiaohao Wang
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Xinrong Zhang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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Luek JL, Harir M, Schmitt-Kopplin P, Mouser PJ, Gonsior M. Organic sulfur fingerprint indicates continued injection fluid signature 10 months after hydraulic fracturing. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2019; 21:206-213. [PMID: 30303509 DOI: 10.1039/c8em00331a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydraulic fracturing requires the injection of large volumes of fluid to extract oil and gas from low permeability unconventional resources (e.g., shale, coalbed methane), resulting in the production of large volumes of highly complex and variable waste fluids. Shale gas fluid samples were collected from two hydraulically fractured wells in Morgantown, WV, USA at the Marcellus Shale Energy and Environment Laboratory (MSEEL) and analyzed using ultrahigh resolution mass spectrometry to investigate the dissolved organic sulfur (DOS) pool. Using a non-targeted approach, ions assigned DOS formulas were analyzed to identify dominant DOS classes, describe their temporal trends and their implications, and describe the molecular characteristics of the larger DOS pool. The average molecular weight of organic sulfur compounds in flowback decreased and was lowest in produced waters. The dominant DOS classes were putatively assigned to alcohol sulfate and alcohol ethoxysulfate surfactants, likely injected as fracturing fluid additives, on the basis of exact mass and homolog distribution matching. This DOS signature was identifiable 10 months after the initial injection of hydraulic fracturing fluid, and an absence of genes that code for alcohol ethoxysulfate degrading proteins (e.g., sulfatases) in the shale well genomes and metagenomes support that these additives are not readily degraded biologically and may continue to act as a chemical signature of the injected fluid. Understanding the diversity, lability, and fate of organic sulfur compounds in shale wells is important for engineering productive wells and preventing gas souring as well as understanding the consequences of unintended fluid release to the environment. The diversity of DOS, particularly more polar compounds, needs further investigation to determine if the identified characteristics and temporal patterns are unique to the analyzed wells or represent broader patterns found in other formations and under other operating conditions.
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Affiliation(s)
- Jenna L Luek
- University of New Hampshire, Department of Civil and Environmental Engineering, Durham, NH 03825, USA.
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Rahman MM, Chingin K, Chen H. Online desalting and sequential formation of analyte ions for mass spectrometry characterization of untreated biological samples. Chem Commun (Camb) 2019; 55:9188-9191. [DOI: 10.1039/c9cc04705k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Current-limited high voltage polarity reversing nanoelectrospray ionization allows online separation of intrinsic metal ions in complex biological samples, resulting in the generation of protonated analytes without interference from salt cations.
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Affiliation(s)
- Md. Matiur Rahman
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- China
| | - Konstantin Chingin
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- China
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- China
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7
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Koch BP, Ksionzek KB, Lechtenfeld OJ, McCallister SL, Schmitt-Kopplin P, Geuer JK, Geibert W. Response to Comment on “Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory”. Science 2017; 356:813. [DOI: 10.1126/science.aam6328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 04/07/2017] [Indexed: 11/02/2022]
Affiliation(s)
- Boris P. Koch
- Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- MARUM Center for Marine Environmental Sciences, Leobener Straße, D-28359 Bremen, Germany
- University of Applied Sciences, An der Karlstadt 8, 27568 Bremerhaven, Germany
| | - Kerstin B. Ksionzek
- Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- MARUM Center for Marine Environmental Sciences, Leobener Straße, D-28359 Bremen, Germany
| | - Oliver J. Lechtenfeld
- Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- UFZ-Helmholtz Centre for Environmental Research, Department of Analytical Chemistry, Permoserstraße 15, D-04318 Leipzig, Germany
| | - S. Leigh McCallister
- Virginia Commonwealth University, Department of Biology, Center for Environmental Studies, 1000 West Cary Street, Richmond, VA 23284, USA
| | - Philippe Schmitt-Kopplin
- Helmholtz Zentrum München (HMGU), German Research Centre for Environmental Health, Analytical BioGeoChemistry (BGC), Ingolstädter Landstraße 1, D-85764 Neuherberg, Germany
- Technische Universität München, Chair of Analytical Food Chemistry, Alte Akademie 10, 85354 Freising, Germany
| | - Jana K. Geuer
- Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Walter Geibert
- Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
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Sorbent, device, matrix and application in microextraction by packed sorbent (MEPS): A review. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1043:33-43. [DOI: 10.1016/j.jchromb.2016.10.044] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 10/12/2016] [Accepted: 10/25/2016] [Indexed: 12/11/2022]
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9
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Cochran RE, Laskina O, Jayarathne T, Laskin A, Laskin J, Lin P, Sultana C, Lee C, Moore KA, Cappa CD, Bertram TH, Prather KA, Grassian VH, Stone EA. Analysis of Organic Anionic Surfactants in Fine and Coarse Fractions of Freshly Emitted Sea Spray Aerosol. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:2477-86. [PMID: 26828238 DOI: 10.1021/acs.est.5b04053] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The inclusion of organic compounds in freshly emitted sea spray aerosol (SSA) has been shown to be size-dependent, with an increasing organic fraction in smaller particles. Here we have used electrospray ionization-high resolution mass spectrometry in negative ion mode to identify organic compounds in nascent sea spray collected throughout a 25 day mesocosm experiment. Over 280 organic compounds from ten major homologous series were tentatively identified, including saturated (C8-C24) and unsaturated (C12-C22) fatty acids, fatty acid derivatives (including saturated oxo-fatty acids (C5-C18) and saturated hydroxy-fatty acids (C5-C18), organosulfates (C2-C7, C12-C17) and sulfonates (C16-C22). During the mesocosm, the distributions of molecules within some homologous series responded to variations among the levels of phytoplankton and bacteria in the seawater. The average molecular weight and carbon preference index of saturated fatty acids significantly decreased within fine SSA during the progression of the mesocosm, which was not observed in coarse SSA, sea-surface microlayer or in fresh seawater. This study helps to define the molecular composition of nascent SSA and biological processes in the ocean relate to SSA composition.
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Affiliation(s)
- Richard E Cochran
- Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United States
| | - Olga Laskina
- Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United States
| | - Thilina Jayarathne
- Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United States
| | - Alexander Laskin
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99354, United States
| | - Julia Laskin
- Physical Sciences Division, Pacific Northwest National Laboratory , Richland, Washington 99354, United States
| | - Peng Lin
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99354, United States
| | - Camille Sultana
- Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States
| | - Christopher Lee
- Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States
| | - Kathryn A Moore
- Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States
| | - Christopher D Cappa
- Department of Civil and Environmental Engineering, University of California, Davis , Davis, California 95616, United States
| | - Timothy H Bertram
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Kimberly A Prather
- Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States
- Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92093, United States
| | - Vicki H Grassian
- Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States
- Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92093, United States
| | - Elizabeth A Stone
- Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United States
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Sandron S, Rojas A, Wilson R, Davies NW, Haddad PR, Shellie RA, Nesterenko PN, Kelleher BP, Paull B. Chromatographic methods for the isolation, separation and characterisation of dissolved organic matter. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2015; 17:1531-1567. [PMID: 26290053 DOI: 10.1039/c5em00223k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This review presents an overview of the separation techniques applied to the complex challenge of dissolved organic matter characterisation. The review discusses methods for isolation of dissolved organic matter from natural waters, and the range of separation techniques used to further fractionate this complex material. The review covers both liquid and gas chromatographic techniques, in their various modes, and electrophoretic based approaches. For each, the challenges that the separation and fractionation of such an immensely complex sample poses is critically reviewed.
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Affiliation(s)
- Sara Sandron
- Australian Centre for Research on Separation Sciences (ACROSS), University of Tasmania, Private Bag 75, Hobart, Tasmania, Australia 7001.
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12
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Wei Z, Han S, Gong X, Zhao Y, Yang C, Zhang S, Zhang X. Rapid Removal of Matrices from Small-Volume Samples by Step-Voltage Nanoelectrospray. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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Wei Z, Han S, Gong X, Zhao Y, Yang C, Zhang S, Zhang X. Rapid Removal of Matrices from Small-Volume Samples by Step-Voltage Nanoelectrospray. Angew Chem Int Ed Engl 2013; 52:11025-8. [DOI: 10.1002/anie.201302870] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 06/23/2013] [Indexed: 12/23/2022]
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A critical review of microextraction by packed sorbent as a sample preparation approach in drug bioanalysis. Bioanalysis 2013; 5:1409-42. [DOI: 10.4155/bio.13.92] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Sample preparation is widely accepted as the most labor-intensive and error-prone part of the bioanalytical process. The recent advances in this field have been focused on the miniaturization and integration of sample preparation online with analytical instrumentation, in order to reduce laboratory workload and increase analytical performance. From this perspective, microextraction by packed sorbent (MEPS) has emerged in the last few years as a powerful sample preparation approach suitable to be easily automated with liquid and gas chromatographic systems applied in a variety of bioanalytical areas (pharmaceutical, clinical, toxicological, environmental and food research). This paper aims to provide an overview and a critical discussion of recent bioanalytical methods reported in literature based on MEPS, with special emphasis on those developed for the quantification of therapeutic drugs and/or metabolites in biological samples. The advantages and some limitations of MEPS, as well as its comparison with other extraction techniques, are also addressed herein.
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Considerations on the application of miniaturized sample preparation approaches for the analysis of organic compounds in environmental matrices. OPEN CHEM 2012. [DOI: 10.2478/s11532-011-0114-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractThe miniaturization and improvement of sample preparation is a challenge that has been fulfilled up to a point in many fields of analytical chemistry. Particularly, the hyphenation of microextraction with advanced analytical techniques has allowed the monitoring of target analytes in a vast variety of environmental samples. Several benefits can be obtained when miniaturized techniques such as solid-phase microextraction (SPME) or liquid-phase microextraction (LPME) are applied, specifically, their easiness, rapidity and capability to separate and pre-concentrate target analytes with a negligible consumption of organic solvents. In spite of the great acceptance that these green sample preparation techniques have in environmental research, their full implementation has not been achieved or even attempted in some relevant environmental matrices. In this work, a critical review of the applications of LPME and SPME techniques to isolate and pre-concentrate traces of organic pollutants is provided. In addition, the influence of the environmental matrix on the effectiveness of LPME and SPME for isolating the target organic pollutants is addressed. Finally, unsolved issues that may hinder the application of these techniques for the extraction of dissolved organic matter from environmental samples and some suggestions for developing novel and less selective enrichment and isolation procedures for natural organic matter on the basis of SPME and LPME are included.
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Prieto A, Vallejo A, Zuloaga O, Paschke A, Sellergen B, Schillinger E, Schrader S, Möder M. Selective determination of estrogenic compounds in water by microextraction by packed sorbents and a molecularly imprinted polymer coupled with large volume injection-in-port-derivatization gas chromatography–mass spectrometry. Anal Chim Acta 2011; 703:41-51. [DOI: 10.1016/j.aca.2011.07.007] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 06/30/2011] [Accepted: 07/05/2011] [Indexed: 11/15/2022]
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17
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Aufartová J, Mahugo-Santana C, Sosa-Ferrera Z, Santana-Rodríguez JJ, Nováková L, Solich P. Determination of steroid hormones in biological and environmental samples using green microextraction techniques: An overview. Anal Chim Acta 2011; 704:33-46. [DOI: 10.1016/j.aca.2011.07.030] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 07/15/2011] [Accepted: 07/19/2011] [Indexed: 11/27/2022]
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Abdel-Rehim M. Microextraction by packed sorbent (MEPS): a tutorial. Anal Chim Acta 2011; 701:119-28. [PMID: 21801877 DOI: 10.1016/j.aca.2011.05.037] [Citation(s) in RCA: 203] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 05/24/2011] [Accepted: 05/24/2011] [Indexed: 12/25/2022]
Abstract
This tutorial provides an overview on a new technique for sample preparation, microextraction by packed sorbent (MEPS). Not only the automation process by MEPS is the advantage but also the much smaller volumes of the samples, solvents and dead volumes in the system. Other significant advantages such as the speed and the simplicity of the sample preparation process are provided. In this tutorial the main concepts of MEPS will be elucidated. Different practical aspects in MEPS are addressed. The factors affecting MEPS performance will be discussed. The application of MEPS in clinical and pre-clinical studies for quantification of drugs and metabolites in blood, plasma and urine will be provided. A comparison between MEPS and other extraction techniques such as SPE, LLE, SPME and SBSE will be discussed.
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González-Mariño I, Quintana JB, Rodríguez I, Schrader S, Moeder M. Fully automated determination of parabens, triclosan and methyl triclosan in wastewater by microextraction by packed sorbents and gas chromatography–mass spectrometry. Anal Chim Acta 2011; 684:50-7. [DOI: 10.1016/j.aca.2010.10.049] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 10/26/2010] [Accepted: 10/31/2010] [Indexed: 11/17/2022]
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Prieto A, Schrader S, Moeder M. Determination of organic priority pollutants and emerging compounds in wastewater and snow samples using multiresidue protocols on the basis of microextraction by packed sorbents coupled to large volume injection gas chromatography–mass spectrometry analysis. J Chromatogr A 2010; 1217:6002-11. [DOI: 10.1016/j.chroma.2010.07.070] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Revised: 07/22/2010] [Accepted: 07/27/2010] [Indexed: 11/16/2022]
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Yu Y, Chen B, Shen C, Cai Y, Xie M, Zhou W, Chen Y, Li Y, Duan G. Multiple headspace single-drop microextraction coupled with gas chromatography for direct determination of residual solvents in solid drug product. J Chromatogr A 2010; 1217:5158-64. [DOI: 10.1016/j.chroma.2010.06.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 05/26/2010] [Accepted: 06/04/2010] [Indexed: 10/19/2022]
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