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Milani NBL, van Gilst E, Pirok BWJ, Schoenmakers PJ. Comprehensive two-dimensional gas chromatography- A discussion on recent innovations. J Sep Sci 2023; 46:e2300304. [PMID: 37654057 DOI: 10.1002/jssc.202300304] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/16/2023] [Accepted: 08/19/2023] [Indexed: 09/02/2023]
Abstract
Although comprehensive 2-D GC is an established and often applied analytical method, the field is still highly dynamic thanks to a remarkable number of innovations. In this review, we discuss a number of recent developments in comprehensive 2-D GC technology. A variety of modulation methods are still being actively investigated and many exciting improvements are discussed in this review. We also review interesting developments in detection methods, retention modeling, and data analysis.
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Affiliation(s)
- Nino B L Milani
- Van't Hoff Institute for Molecular Science (HIMS), University of Amsterdam, Amsterdam, the Netherlands
| | - Eric van Gilst
- Van't Hoff Institute for Molecular Science (HIMS), University of Amsterdam, Amsterdam, the Netherlands
| | - Bob W J Pirok
- Van't Hoff Institute for Molecular Science (HIMS), University of Amsterdam, Amsterdam, the Netherlands
| | - Peter J Schoenmakers
- Van't Hoff Institute for Molecular Science (HIMS), University of Amsterdam, Amsterdam, the Netherlands
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2
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Kusenberg M, Eschenbacher A, Djokic MR, Zayoud A, Ragaert K, De Meester S, Van Geem KM. Opportunities and challenges for the application of post-consumer plastic waste pyrolysis oils as steam cracker feedstocks: To decontaminate or not to decontaminate? WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 138:83-115. [PMID: 34871884 PMCID: PMC8769047 DOI: 10.1016/j.wasman.2021.11.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 10/11/2021] [Accepted: 11/07/2021] [Indexed: 05/15/2023]
Abstract
Thermochemical recycling of plastic waste to base chemicals via pyrolysis followed by a minimal amount of upgrading and steam cracking is expected to be the dominant chemical recycling technology in the coming decade. However, there are substantial safety and operational risks when using plastic waste pyrolysis oils instead of conventional fossil-based feedstocks. This is due to the fact that plastic waste pyrolysis oils contain a vast amount of contaminants which are the main drivers for corrosion, fouling and downstream catalyst poisoning in industrial steam cracking plants. Contaminants are therefore crucial to evaluate the steam cracking feasibility of these alternative feedstocks. Indeed, current plastic waste pyrolysis oils exceed typical feedstock specifications for numerous known contaminants, e.g. nitrogen (∼1650 vs. 100 ppm max.), oxygen (∼1250 vs. 100 ppm max.), chlorine (∼1460vs. 3 ppm max.), iron (∼33 vs. 0.001 ppm max.), sodium (∼0.8 vs. 0.125 ppm max.)and calcium (∼17vs. 0.5 ppm max.). Pyrolysis oils produced from post-consumer plastic waste can only meet the current specifications set for industrial steam cracker feedstocks if they are upgraded, with hydrogen based technologies being the most effective, in combination with an effective pre-treatment of the plastic waste such as dehalogenation. Moreover, steam crackers are reliant on a stable and predictable feedstock quality and quantity representing a challenge with plastic waste being largely influenced by consumer behavior, seasonal changes and local sorting efficiencies. Nevertheless, with standardization of sorting plants this is expected to become less problematic in the coming decade.
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Affiliation(s)
- Marvin Kusenberg
- Laboratory for Chemical Technology (LCT), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering & Architecture, Ghent University, B-9052 Zwijnaarde, Belgium
| | - Andreas Eschenbacher
- Laboratory for Chemical Technology (LCT), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering & Architecture, Ghent University, B-9052 Zwijnaarde, Belgium
| | - Marko R Djokic
- Laboratory for Chemical Technology (LCT), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering & Architecture, Ghent University, B-9052 Zwijnaarde, Belgium
| | - Azd Zayoud
- Laboratory for Chemical Technology (LCT), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering & Architecture, Ghent University, B-9052 Zwijnaarde, Belgium
| | - Kim Ragaert
- Center for Polymer and Material Technologies (CPMT), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, B-9052 Zwijnaarde, Belgium
| | - Steven De Meester
- Laboratory for Circular Process Engineering (LCPE), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, B-8500 Kortrijk, Belgium
| | - Kevin M Van Geem
- Laboratory for Chemical Technology (LCT), Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering & Architecture, Ghent University, B-9052 Zwijnaarde, Belgium
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3
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Augustini ALRM, Sielemann S, Telgheder U. Strategy for the identification of flavor compounds in e-liquids by correlating the analysis of GCxIMS and GC-MS. Talanta 2021; 230:122318. [PMID: 33934782 DOI: 10.1016/j.talanta.2021.122318] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/12/2021] [Accepted: 03/13/2021] [Indexed: 11/15/2022]
Abstract
This work presents a strategy to correlate the results from gas chromatography coupled ion mobility spectrometry (GCxIMS) and mass spectrometry (GC-MS) to enable a simpler and cheaper analysis of flavor compounds in e-liquids. The use of the retention index for GCxIMS measurements was validated for its application to correlate results with GC-MS data. The easy detection of the GCxIMS for substances at concentrations as low as 1 μg/L can therefore be combined with the identification power of the MS. The use of the MS' mass signals and wide-spread availability of mass spectra libraries reduces the effort necessary to choose the correct reference standards for the identification of unknown substances. Between both detectors, correlating of the retention time indices was achieved for ± 1%. 2-Alkanones were used as an alternative reference point for the IMS and the well-established alkanes for the MS. The application on flavor compounds in e-liquids shows equal or better results than those presented for more complex, hardware-based correlations like line splitting. Additionally, the inverted reduced mobility combined with the retention index of a non-polar column enables simple extrapolation for the confirmation of expected substances as well as the use in a transferable database. For the first time, this comprehensive application allows an extensive, simplified, and cheap identification of flavor compounds in e-liquids by GCxIMS and GC-MS.
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Affiliation(s)
- Alexander L R M Augustini
- Hamm-Lippstadt University of Applied Sciences, Marker Allee 76-78, 59063, Hamm, Germany; Faculty of Chemistry, Instrumental Analytical Chemistry, University of Duisburg-Essen, Universitätsstrasse 5, 45141, Essen, Germany.
| | - Stefanie Sielemann
- Hamm-Lippstadt University of Applied Sciences, Marker Allee 76-78, 59063, Hamm, Germany.
| | - Ursula Telgheder
- Faculty of Chemistry, Instrumental Analytical Chemistry, University of Duisburg-Essen, Universitätsstrasse 5, 45141, Essen, Germany.
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4
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Misra BB. Advances in high resolution GC-MS technology: a focus on the application of GC-Orbitrap-MS in metabolomics and exposomics for FAIR practices. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:2265-2282. [PMID: 33987631 DOI: 10.1039/d1ay00173f] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Gas chromatography-mass spectrometry (GC-MS) provides a complementary analytical platform for capturing volatiles, non-polar and (derivatized) polar metabolites and exposures from a diverse array of matrixes. High resolution (HR) GC-MS as a data generation platform can capture data on analytes that are usually not detectable/quantifiable in liquid chromatography mass-spectrometry-based solutions. With the rise of high-resolution accurate mass (HRAM) GC-MS systems such as GC-Orbitrap-MS in the last decade after the time-of-flight (ToF) renaissance, numerous applications have been found in the fields of metabolomics and exposomics. In a short span of time, a multitude of studies have used GC-Orbitrap-MS to generate exciting new high throughput data spanning from diverse basic to applied research areas. The GC-Orbitrap-MS has found application in both targeted and untargeted efforts for capturing metabolomes and exposomes across diverse studies. In this review, I capture and summarize all the reported studies to date, and provide a snapshot of the milieu of commercial and open-source software solutions, spectral libraries, and informatics solutions available to a GC-Orbitrap-MS system instrument user or a data analyst dealing with these datasets. Lastly, but importantly, I provide an account on data sharing and meta-data capturing solutions that are available to make HRAM GC-MS based metabolomics and exposomics studies findable, accessible, interoperable, and reproducible (FAIR). These FAIR practices would allow data generators and users of GC-HRMS instruments to help the community of GC-MS researchers to collaborate and co-develop exciting tools and algorithms in the future.
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Affiliation(s)
- Biswapriya B Misra
- Independent Researcher, Pine-211, Raintree Park Dwaraka Krishna, Namburu, AP-522508, India.
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5
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Arif S, Al-Tameemi M, Wilson WB, Wise SA, Barbosa F, Campiglia AD. Low-temperature time-resolved phosphorescence excitation emission matrices for the analysis of phenanthro-thiophenes in chromatographic fractions of complex environmental extracts. Talanta 2020; 212:120805. [PMID: 32113567 DOI: 10.1016/j.talanta.2020.120805] [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: 11/14/2019] [Revised: 01/23/2020] [Accepted: 02/02/2020] [Indexed: 10/25/2022]
Abstract
The present study investigates the analytical potential of low-temperature photoluminescence spectroscopy for the analysis of seven phenanthrothiophenes with molecular mass 234 g mol-1. The studied PASHs include Phenanthro [1,2-b]thiophene, Phenanthro [2,1-b]thiophene, Phenanthro [2,3-b]thiophene, Phenanthro [3,2-b]thiophene, Phenanthro [3,4-b]thiophene, Phenanthro [4,3-b]thiophene and Phenanthro [9,10-b]thiophene. Excitation and emission spectra recorded from n-alkane solutions at room temperature, 77 K and 4.2 K show phosphorescence emission from all the studied isomers at cryogenic temperatures. The analytical figures of merit obtained under steady state (fluorescence) and time-resolved (phosphorescence) conditions provide limits of detection at the parts-per-billion (ng mL-1) concentration levels. Processing 77 K and 4.2 K phosphorescence data with parallel factor analysis showed to be a robust approach to the determination of phenanthro-thiophenes in complex fluorophore mixtures.
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Affiliation(s)
- Sadia Arif
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA
| | - Maha Al-Tameemi
- Department of Chemistry, College of Sciences for Women, University of Baghdad, Iraq
| | - Walter B Wilson
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stp 8390, Gaithersburg, MD, USA
| | - Stephen A Wise
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stp 8390, Gaithersburg, MD, USA
| | - Fernando Barbosa
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA.
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7
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Lelevic A, Souchon V, Moreaud M, Lorentz C, Geantet C. Gas chromatography vacuum ultraviolet spectroscopy: A review. J Sep Sci 2019; 43:150-173. [PMID: 31750981 DOI: 10.1002/jssc.201900770] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/13/2019] [Accepted: 11/15/2019] [Indexed: 11/12/2022]
Abstract
Accelerated technological progress and increased complexity of interrogated matrices imposes a demand for fast, powerful, and resolutive analysis techniques. Gas chromatography has been for a long time a 'go-to' technique for the analysis of mixtures of volatile and semi-volatile compounds. Coupling of the several dimensions of gas chromatography separation has allowed to access a realm of improved separations in the terms of increased separation power and detection sensitivity. Especially comprehensive separations offer an insight into detailed sample composition for complex samples. Combining these advanced separation techniques with an informative detection system such as vacuum ultraviolet spectroscopy is therefore of great interest. Almost all molecules absorb the vacuum ultraviolet radiation and have distinct spectral features with compound classes exhibiting spectral signature similarities. Spectral information can be 'filtered' to extract the response in the most informative spectral ranges. Developed algorithms allow spectral mixture estimation of coeluting species. Vacuum ultraviolet detector follows Beer-Lambert law, with the possibility of calibrationless quantitation. The purpose of this article is to provide an overview of the features and specificities of gas chromatography-vacuum ultraviolet spectroscopy coupling which has gained interest since the recent introduction of a commercial vacuum ultraviolet detector. Potentials and limitations, relevant theoretical considerations, recent advances and applications are explored.
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Affiliation(s)
- Aleksandra Lelevic
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize BP 3, 69360, Solaize, France.,IRCELYON, UMR5256 CNRS-UCB Lyon 1, Villeurbanne Cedex, France
| | - Vincent Souchon
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize BP 3, 69360, Solaize, France
| | - Maxime Moreaud
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize BP 3, 69360, Solaize, France.,MINESParisTech, PSL-ResearchUniversity, CMM, Fontainebleau, France
| | - Chantal Lorentz
- IRCELYON, UMR5256 CNRS-UCB Lyon 1, Villeurbanne Cedex, France
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8
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Aspromonte J, Wolfs K, Adams E. Current application and potential use of GC × GC in the pharmaceutical and biomedical field. J Pharm Biomed Anal 2019; 176:112817. [DOI: 10.1016/j.jpba.2019.112817] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 08/14/2019] [Accepted: 08/17/2019] [Indexed: 01/25/2023]
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9
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Comprehensive two-dimensional gas chromatography for the analysis of nitrogen-containing compounds in fossil fuels: A review. Talanta 2019; 198:263-276. [DOI: 10.1016/j.talanta.2019.02.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 01/12/2023]
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10
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Al-Tameemi M, Arif S, Campiglia AD, Wilson WB, Wise SA. Photoluminescence spectroscopy of anthrathiophenes and benzonaphthothiophenes in Shpol'skii matrixes. Talanta 2019; 194:930-940. [PMID: 30609627 DOI: 10.1016/j.talanta.2018.10.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/04/2018] [Accepted: 10/05/2018] [Indexed: 10/28/2022]
Abstract
The dispersion of harmful oil components into the ocean waters could pose long-term risks to flora and fauna. Due to the complexity of oil-contaminated sites, the unambiguous identification and quantitation of environmental pollutants often requires the sequence of high-performance liquid chromatography and gas chromatography-mass spectrometry. A classic example is the analysis of polycyclic aromatic hydrocarbons. This article tackles a different aspect of environmental analysis as it focuses on the Shpol'skii spectroscopy of polycyclic aromatic sulfur heterocycles, specifically those belonging to the subgroups often known as anthrathiophenes and benzonaphthothiophenes. Photoluminescence measurements were made with a commercial spectrofluorimeter equipped with a continuous wave excitation source for steady state measurements and a pulsed excitation source for time-resolved measurements in the phosphorescence time domain. To the extent of our literature search, this is the first report on the 4.2 K fluorescence and phosphorescence spectra of anthrathiophenes and benzonaphthothiophenes, and the 77 K and 4.2 K phosphorescence lifetimes of benzonaphthothiophenes. 77 K and 4.2 K analytical figures of merit revealed the possibility to detect the studied compounds at the parts-per-billion (ng mL-1) concentration levels. The spectral and lifetime data gathered in this article provides the required information to choose an appropriate photoluminescence technique for the analysis of four-ring polycyclic aromatic sulfur heterocycles in complex environmental extracts.
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Affiliation(s)
- M Al-Tameemi
- Department of Chemistry, College of Sciences for Women, University of Baghdad, Baghdad, Iraq
| | - S Arif
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA
| | - A D Campiglia
- Department of Chemistry, University of Central Florida, Physical Sciences Bld. 4111, Orlando, FL 32816, USA.
| | - W B Wilson
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stop 8390, Gaithersburg, MD 20899, USA
| | - S A Wise
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stop 8390, Gaithersburg, MD 20899, USA
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11
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Pollo BJ, Alexandrino GL, Augusto F, Hantao LW. The impact of comprehensive two-dimensional gas chromatography on oil & gas analysis: Recent advances and applications in petroleum industry. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.05.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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12
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Elbashir AA, Aboul-Enein HY. Multidimensional Gas Chromatography for Chiral Analysis. Crit Rev Anal Chem 2018; 48:416-427. [DOI: 10.1080/10408347.2018.1444465] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | - Hassan Y. Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department, Division of Pharmaceutical and Drug Industries Research Division, National Research Centre, Dokki, Cairo, Egypt
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13
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Zavahir JS, Nolvachai Y, Marriott PJ. Molecular spectroscopy – Information rich detection for gas chromatography. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Lu Y, Li GS, Lu YC, Fan X, Wei XY. Analytical Strategies Involved in the Detailed Componential Characterization of Biooil Produced from Lignocellulosic Biomass. Int J Anal Chem 2017; 2017:9298523. [PMID: 29387086 PMCID: PMC5745679 DOI: 10.1155/2017/9298523] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 08/16/2017] [Indexed: 01/27/2023] Open
Abstract
Elucidation of chemical composition of biooil is essentially important to evaluate the process of lignocellulosic biomass (LCBM) conversion and its upgrading and suggest proper value-added utilization like producing fuel and feedstock for fine chemicals. Although the main components of LCBM are cellulose, hemicelluloses, and lignin, the chemicals derived from LCBM differ significantly due to the various feedstock and methods used for the decomposition. Biooil, produced from pyrolysis of LCBM, contains hundreds of organic chemicals with various classes. This review covers the methodologies used for the componential analysis of biooil, including pretreatments and instrumental analysis techniques. The use of chromatographic and spectrometric methods was highlighted, covering the conventional techniques such as gas chromatography, high performance liquid chromatography, Fourier transform infrared spectroscopy, nuclear magnetic resonance, and mass spectrometry. The combination of preseparation methods and instrumental technologies is a robust pathway for the detailed componential characterization of biooil. The organic species in biooils can be classified into alkanes, alkenes, alkynes, benzene-ring containing hydrocarbons, ethers, alcohols, phenols, aldehydes, ketones, esters, carboxylic acids, and other heteroatomic organic compounds. The recent development of high resolution mass spectrometry and multidimensional hyphenated chromatographic and spectrometric techniques has considerably elucidated the composition of biooils.
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Affiliation(s)
- Yao Lu
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
- Advanced Analysis & Computation Center, China University of Mining & Technology, Xuzhou 221116, China
- School of Chemical and Engineering Technology, China University of Mining & Technology, Xuzhou 221116, China
| | - Guo-Sheng Li
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
- School of Chemical and Engineering Technology, China University of Mining & Technology, Xuzhou 221116, China
| | - Yong-Chao Lu
- School of Basic Education Sciences, Xuzhou Medical University, Xuzhou 221004, China
| | - Xing Fan
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
- School of Chemical and Engineering Technology, China University of Mining & Technology, Xuzhou 221116, China
| | - Xian-Yong Wei
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
- School of Chemical and Engineering Technology, China University of Mining & Technology, Xuzhou 221116, China
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Hilaire F, Basset E, Bayard R, Gallardo M, Thiebaut D, Vial J. Comprehensive two-dimensional gas chromatography for biogas and biomethane analysis. J Chromatogr A 2017; 1524:222-232. [DOI: 10.1016/j.chroma.2017.09.071] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 08/08/2017] [Accepted: 09/28/2017] [Indexed: 10/18/2022]
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16
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Lorentz C, Laurenti D, Zotin JL, Geantet C. Comprehensive GC × GC chromatography for the characterization of sulfur compound in fuels: A review. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.04.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Alam MS, Harrison RM. Recent advances in the application of 2-dimensional gas chromatography with soft and hard ionisation time-of-flight mass spectrometry in environmental analysis. Chem Sci 2016; 7:3968-3977. [PMID: 30155039 PMCID: PMC6013788 DOI: 10.1039/c6sc00465b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 04/27/2016] [Indexed: 12/23/2022] Open
Abstract
Two-dimensional gas chromatography has huge power for separating complex mixtures. The principles of the technique are outlined together with an overview of detection methods applicable to GC × GC column effluent with a focus on selectivity. Applications of GC × GC techniques in the analysis of petroleum-related and airborne particulate matter samples are reviewed. Mass spectrometric detection can be used alongside spectral libraries to identify eluted compounds, but in complex petroleum-related and atmospheric samples, when used conventionally at high ionisation energies, may not allow differentiation of structural isomers. Available low energy ionisation methods are reviewed and an example given of the additional structural information which can be extracted by measuring mass spectra at both low and high ionisation energies, hence greatly enhancing the selectivity of the technique.
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Affiliation(s)
- Mohammed S Alam
- School of Geography, Earth and Environmental Sciences , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK .
| | - Roy M Harrison
- School of Geography, Earth and Environmental Sciences , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK .
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18
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Tang W, Sheng H, Jin C, Riedeman JS, Kenttämaa HI. Characterization of aromatic organosulfur model compounds relevant to fossil fuels by using atmospheric pressure chemical ionization with CS2 and high-resolution tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30:953-962. [PMID: 26969938 DOI: 10.1002/rcm.7498] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 12/21/2015] [Accepted: 12/22/2015] [Indexed: 06/05/2023]
Abstract
RATIONALE The chemistry of desulfurization involved in processing crude oil is greatly dependent on the forms of sulfur in the oil. Sulfur exists in different chemical bonding environments in fossil fuels, including those in thiophenes and benzothiophenes, thiols, sulfides, and disulfides. In this study, the fragmentation behavior of the molecular ions of 17 aromatic organosulfur compounds with various functionalities was systematically investigated by using high-resolution tandem mass spectrometry. METHODS Multiple-stage tandem mass spectrometric experiments were carried out using a linear quadrupole ion trap (LQIT) equipped with an atmospheric pressure chemical ionization (APCI) source. (+)APCI/CS2 was used to generate stable dominant molecular ions for all the compounds studied except for three sulfides that also showed abundant fragment ions. The LQIT coupled with an orbitrap mass spectrometer was used for elemental composition analysis, which facilitated the identification of the neutral molecules lost during fragmentation. RESULTS The characteristic fragment ions generated in MS(2) and MS(3) experiments provide clues for the chemical bonding environment of sulfur atoms in the examined compounds. Upon collision-induced dissociation (CID), the molecular ions can lose the sulfur atom in a variety of ways, including as S (32 Da), HS(•) (33 Da), H2 S (34 Da), CS (44 Da), (•) CHS (45 Da) and CH2 S (46 Da). These neutral fragments are not only indicative of the presence of sulfur, but also of the type of sulfur present in the compound. Generally, losses of HS(•) and H2 S were found to be associated with compounds containing saturated sulfur functionalities, while losses of S, CS and (•) CHS were more common for heteroaromatic sulfur compounds. CONCLUSIONS High-resolution tandem mass spectrometry with APCI/CS2 ionization is a viable approach to determining the types of organosulfur compounds. It can potentially be applied to analysis of complex mixtures, which is beneficial to improving the desulfurization process of fossil fuels. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Weijuan Tang
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Huaming Sheng
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Chunfen Jin
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - James S Riedeman
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Hilkka I Kenttämaa
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
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19
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Gröger T, Gruber B, Harrison D, Saraji-Bozorgzad M, Mthembu M, Sutherland A, Zimmermann R. A Vacuum Ultraviolet Absorption Array Spectrometer as a Selective Detector for Comprehensive Two-Dimensional Gas Chromatography: Concept and First Results. Anal Chem 2016; 88:3031-9. [DOI: 10.1021/acs.analchem.5b02472] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Thomas Gröger
- Joint
Mass Spectrometry Centre,
Cooperation Group Comprehensive Molecular Analytics, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
- Joint
Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, Dr. Lorenz Weg 1, 18051 Rostock, Germany
| | - Beate Gruber
- Joint
Mass Spectrometry Centre,
Cooperation Group Comprehensive Molecular Analytics, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
- Joint
Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, Dr. Lorenz Weg 1, 18051 Rostock, Germany
| | - Dale Harrison
- VUV Analytics, Inc., Austin, Texas 78717, United States
| | | | - Makhosazana Mthembu
- Joint
Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, Dr. Lorenz Weg 1, 18051 Rostock, Germany
| | - Aimée Sutherland
- Joint
Mass Spectrometry Centre,
Cooperation Group Comprehensive Molecular Analytics, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
- Joint
Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, Dr. Lorenz Weg 1, 18051 Rostock, Germany
| | - Ralf Zimmermann
- Joint
Mass Spectrometry Centre,
Cooperation Group Comprehensive Molecular Analytics, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
- Joint
Mass Spectrometry Centre, Chair of Analytical Chemistry, University of Rostock, Dr. Lorenz Weg 1, 18051 Rostock, Germany
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20
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Dijkmans T, Van Geem KM, Djokic MR, Marin GB. Combined Comprehensive Two-Dimensional Gas Chromatography Analysis of Polyaromatic Hydrocarbons/Polyaromatic Sulfur-Containing Hydrocarbons (PAH/PASH) in Complex Matrices. Ind Eng Chem Res 2014. [DOI: 10.1021/ie5000888] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas Dijkmans
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, 9052 Zwijnaarde, Belgium
| | - Kevin M. Van Geem
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, 9052 Zwijnaarde, Belgium
| | - Marko R. Djokic
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, 9052 Zwijnaarde, Belgium
| | - Guy B. Marin
- Laboratory for Chemical Technology, Ghent University, Technologiepark 914, 9052 Zwijnaarde, Belgium
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21
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Hourani N, Andersson JT, Möller I, Amad M, Witt M, Sarathy SM. Atmospheric pressure chemical ionization Fourier transform ion cyclotron resonance mass spectrometry for complex thiophenic mixture analysis. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:2432-2438. [PMID: 24097400 DOI: 10.1002/rcm.6707] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 08/08/2013] [Accepted: 08/09/2013] [Indexed: 06/02/2023]
Abstract
RATIONALE Polycyclic aromatic sulfur heterocycles (PASHs) are detrimental species for refining processes in petroleum industry. Current mass spectrometric methods that determine their composition are often preceded by derivatization and dopant addition approaches. Different ionization methods have different impact on the molecular assignment of complex PASHs. The analysis of such species under atmospheric pressure chemical ionization (APCI) is still considered limited due to uncontrolled ion generation with low- and high-mass PASHs. METHODS The ionization behavior of a model mixture of five selected PASH standards was investigated using an APCI source with nitrogen as the reagent gas. A complex thiophenic fraction was separated from a vacuum gas oil (VGO) and injected using the same method. The samples were analyzed using Fourier transform ion cyclotron resonance mass spectrometry (FTICR MS). RESULTS PASH model analytes were successfully ionized and mainly [M + H](+) ions were produced. The same ionization pattern was observed for the real thiophenic sample. It was found that S1 class species were the major sulfur-containing species found in the VGO sample. These species indicated the presence of alkylated benzothiophenic (BT), dibenzothiophenic (DBT) and benzonaphthothiophenic (BNT) series that were detected by APCI-FTICR MS. CONCLUSIONS This study provides an established APCI-FTICR MS method for the analysis of complex PASHs. PASHs were detected without using any derivatization and without fragmentation. The method can be used for the analysis of S-containing crude oil samples.
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Affiliation(s)
- Nadim Hourani
- Clean Combustion Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
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22
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Lissitsyna K, Huertas S, Quintero LC, Polo LM. Quantitation method of N
,N
′-disalicylidene-1,2-propanediamine by comprehensive two-dimensional gas chromatography coupled to a nitrogen chemiluminescence detector. J Sep Sci 2013; 36:1768-73. [DOI: 10.1002/jssc.201300050] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 02/23/2013] [Accepted: 03/06/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Kristina Lissitsyna
- Universidad Complutense de Madrid; Departamento de Química Analítica; Madrid Spain
| | | | | | - Luis Maria Polo
- Universidad Complutense de Madrid; Departamento de Química Analítica; Madrid Spain
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23
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Comparison between pre-fractionation and fractionation process of heavy gas oil for determination of sulfur compounds using comprehensive two-dimensional gas chromatography. J Chromatogr A 2013; 1274:165-72. [DOI: 10.1016/j.chroma.2012.12.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 12/01/2012] [Accepted: 12/03/2012] [Indexed: 11/21/2022]
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24
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Meinert C, Meierhenrich UJ. Die umfassende zweidimensionale Gaschromatographie - eine neue Dimension für analytische Trennwissenschaften. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200842] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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25
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Meinert C, Meierhenrich UJ. A New Dimension in Separation Science: Comprehensive Two-Dimensional Gas Chromatography. Angew Chem Int Ed Engl 2012; 51:10460-70. [DOI: 10.1002/anie.201200842] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 04/12/2012] [Indexed: 11/11/2022]
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26
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Nizio KD, McGinitie TM, Harynuk JJ. Comprehensive multidimensional separations for the analysis of petroleum. J Chromatogr A 2012; 1255:12-23. [DOI: 10.1016/j.chroma.2012.01.078] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 01/24/2012] [Accepted: 01/26/2012] [Indexed: 12/16/2022]
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27
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Mostafa A, Edwards M, Górecki T. Optimization aspects of comprehensive two-dimensional gas chromatography. J Chromatogr A 2012; 1255:38-55. [DOI: 10.1016/j.chroma.2012.02.064] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 02/21/2012] [Accepted: 02/24/2012] [Indexed: 11/16/2022]
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28
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29
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Challenge in the speciation of nitrogen-containing compounds in heavy petroleum fractions by high temperature comprehensive two-dimensional gas chromatography. J Chromatogr A 2011; 1218:3190-9. [DOI: 10.1016/j.chroma.2010.10.056] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 10/08/2010] [Accepted: 10/14/2010] [Indexed: 11/18/2022]
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30
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Ávila BM, Pereira R, Gomes AO, Azevedo DA. Chemical characterization of aromatic compounds in extra heavy gas oil by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry. J Chromatogr A 2011; 1218:3208-16. [DOI: 10.1016/j.chroma.2010.09.051] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 09/14/2010] [Accepted: 09/16/2010] [Indexed: 10/19/2022]
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31
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Machado ME, Caramão EB, Zini CA. Investigation of sulphur compounds in coal tar using monodimensional and comprehensive two-dimensional gas chromatography. J Chromatogr A 2011; 1218:3200-7. [DOI: 10.1016/j.chroma.2010.11.077] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2010] [Revised: 11/27/2010] [Accepted: 11/29/2010] [Indexed: 10/18/2022]
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32
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Global approach for the selection of high temperature comprehensive two-dimensional gas chromatography experimental conditions and quantitative analysis in regards to sulfur-containing compounds in heavy petroleum cuts. J Chromatogr A 2011; 1218:534-44. [DOI: 10.1016/j.chroma.2010.11.065] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 11/24/2010] [Accepted: 11/26/2010] [Indexed: 11/17/2022]
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33
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Van Geem KM, Pyl SP, Reyniers MF, Vercammen J, Beens J, Marin GB. On-line analysis of complex hydrocarbon mixtures using comprehensive two-dimensional gas chromatography. J Chromatogr A 2010; 1217:6623-33. [DOI: 10.1016/j.chroma.2010.04.006] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 04/06/2010] [Accepted: 04/08/2010] [Indexed: 11/16/2022]
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34
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Chernetsova ES, Revel’skii AI, Revel’skii IA, Zolotov YA. Gas chromatography of organic mixtures using an atomic emission detector. JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.1134/s1061934810080022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Chapter 2 Basic Instrumentation for GC×GC. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/s0166-526x(09)05502-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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36
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Chapter 7 Petrochemistry. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/s0166-526x(09)05507-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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37
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Pedroso MP, de Godoy LAF, Ferreira EC, Poppi RJ, Augusto F. Identification of gasoline adulteration using comprehensive two-dimensional gas chromatography combined to multivariate data processing. J Chromatogr A 2008; 1201:176-82. [DOI: 10.1016/j.chroma.2008.05.092] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2008] [Revised: 05/27/2008] [Accepted: 05/30/2008] [Indexed: 10/22/2022]
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38
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Recent developments in the application of comprehensive two-dimensional gas chromatography. J Chromatogr A 2008; 1186:67-108. [DOI: 10.1016/j.chroma.2008.01.002] [Citation(s) in RCA: 298] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2007] [Revised: 01/01/2008] [Accepted: 01/02/2008] [Indexed: 11/23/2022]
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39
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van Stee L, Brinkman U. Developments in the application of gas chromatography with atomic emission (plus mass spectrometric) detection. J Chromatogr A 2008; 1186:109-22. [DOI: 10.1016/j.chroma.2007.10.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2007] [Revised: 09/27/2007] [Accepted: 10/12/2007] [Indexed: 11/27/2022]
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40
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Mondello L, Tranchida PQ, Dugo P, Dugo G. Comprehensive two-dimensional gas chromatography-mass spectrometry: a review. MASS SPECTROMETRY REVIEWS 2008; 27:101-124. [PMID: 18240151 DOI: 10.1002/mas.20158] [Citation(s) in RCA: 240] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Although comprehensive two-dimensional gas chromatography (GC x GC) has been on the scene for more than 15 years, it is still generally considered a relatively novel technique and is yet far from being fully established. The revolutionary aspect of GC x GC, with respect to classical multidimensional chromatography, is that the entire sample is subjected to two distinct analytical separations. The resulting enhanced separating capacity makes this approach a prime choice when GC analysts are challenged with highly complex mixtures. The combination of a third mass spectrometric dimension to a GC x GC system generates the most powerful analytical tool today for volatile and semi-volatile analytes. The present review is focused on the rather brief, but not scant, history of comprehensive two-dimensional GC-MS: the first experiments were carried out at the end of the 1990s and, since then, the methodology has been increasingly studied and applied. Almost all GC x GC-MS applications have been carried out by using either a time-of-flight or quadrupole mass analyzer; significant experiments relative to a variety of research fields, as well as advantages and disadvantages of the MS systems employed, are discussed. The principles, practical and theoretical aspects, and the most significant developments of GC x GC are also described.
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Affiliation(s)
- Luigi Mondello
- Dipartimento Farmaco-chimico, Facoltà di Farmacia, Università di Messina, viale Annunziata, 98168 Messina, Italy.
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41
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Ochiai N, Ieda T, Sasamoto K, Fushimi A, Hasegawa S, Tanabe K, Kobayashi S. Comprehensive two-dimensional gas chromatography coupled to high-resolution time-of-flight mass spectrometry and simultaneous nitrogen phosphorous and mass spectrometric detection for characterization of nanoparticles in roadside atmosphere. J Chromatogr A 2007; 1150:13-20. [PMID: 17306279 DOI: 10.1016/j.chroma.2007.02.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Revised: 01/26/2007] [Accepted: 02/01/2007] [Indexed: 11/25/2022]
Abstract
A method is described for characterization of size-resolved particles including the nanoparticles fraction with a diameter of 29-58 nm in roadside atmosphere. The method is based on thermal desorption (TD) of a sample followed by comprehensive two-dimensional gas chromatography (GC x GC) with novel detection capabilities, including high resolution time-of-flight mass spectrometry (HRTOF-MS) and simultaneous detection with a nitrogen phosphorous detector (NPD) and a quadrupole mass spectrometer (qMS). Increased selectivity with the GC x GC-HRTOF-MS allows a group type separation of a selected chemical class, e.g. oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs), using mass chromatography with a 0.05 Da wide window in the complex sample matrix. Also, exact mass measurements provide candidate elemental compositions as well as NIST library search results for tentative identifications of 50 compounds. Moreover, the simultaneous detection with the NPD and the qMS elucidate the presence of 15 nitrogen-containing compounds. Quantitative analysis of selected PAHs in several size-resolved particles was also performed by use of the TD-GC x GC-qMS with limited scan range. The method showed good linearity (r2>0.988) and high sensitivity (limit of quantification: <10 pg) for most of the target PAHs. The concentration of PAHs per particulate matter (PM) mass in nanoparticles was considerably higher than those of larger size of particles with a diameter of >102 nm.
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Affiliation(s)
- Nobuo Ochiai
- GERSTEL K.K., 2-13-18 Nakane, Meguro-ku, Tokyo 152-0031, Japan.
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42
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Rochat S, Laumer JYDS, Chaintreau A. Analysis of sulfur compounds from the in-oven roast beef aroma by comprehensive two-dimensional gas chromatography. J Chromatogr A 2007; 1147:85-94. [PMID: 17343865 DOI: 10.1016/j.chroma.2007.02.039] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2006] [Revised: 02/08/2007] [Accepted: 02/09/2007] [Indexed: 11/28/2022]
Abstract
After a previous investigation of carbonyl compounds in the in-oven top note of roast beef [S. Rochat, A. Chaintreau, J. Agric. Food Chem. 53 (2005) 9578], this paper focuses on the role of sulfur compounds. Because of the complexity of the roast beef headspace where sulfur compounds occur in trace amounts, a high resolution and sensitive technique, comprehensive two-dimensional gas chromatography (GC x GC), was chosen, that allowed the detection of thousands of compounds in the oven headspace. As identifying all of them would be too time consuming, a strategy had to be developed to extract the pertinent information. More than 70 sulfur compounds were found by GC x GC hyphenated to time-of-flight mass spectrometry (TOF-MS), and the identity of 50 of them was confirmed. To overcome the absence of many retention indices in databanks, the missing values were simulated using a multiple linear regression to help the peak identification. The selection of the most important sulfur odorants from this list was achieved by GC-olfactometry, using the GC-"SNIF" technique. Seven compounds have been found for the first time in beef aroma, of which only one has been previously found in nature.
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Affiliation(s)
- Sabine Rochat
- Firmenich SA, Corporate R&D Division, P.O. Box 239, CH-1211 Geneva 8, Switzerland
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43
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Adam F, Bertoncini F, Brodusch N, Durand E, Thiébaut D, Espinat D, Hennion MC. New benchmark for basic and neutral nitrogen compounds speciation in middle distillates using comprehensive two-dimensional gas chromatography. J Chromatogr A 2007; 1148:55-64. [PMID: 17379235 DOI: 10.1016/j.chroma.2007.01.142] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2006] [Revised: 01/03/2007] [Accepted: 01/24/2007] [Indexed: 11/28/2022]
Abstract
This paper reports an analytical method for the comprehensive two-dimensional gas chromatography (GC x GC) separation and identification of nitrogen compounds (N-compounds) in middle distillates according to their types (basicity). For the evaluation of the best chromatographic conditions, a non-polar x polar approach was chosen. The impact of the second dimension (stationary phase and column length) on the separation of basic and neutral N-compounds was evaluated by mean of two-dimensional resolution. This study revealed that the implementation of polar secondary column having free electron pairs improves drastically the separation of N-compounds. Indeed, the presence of permanent dipole-permanent dipole interactions between neutral N-compounds and the stationary phase was enlightened. The comparison of two different nitrogen chemiluminescence detectors (NCD) was also evaluated for GC x GC selective monitoring of N-compounds. Owing to higher resolution power and enhanced sensitivity achieved using developed chromatographic and detection conditions, it was possible to identify univocally and to quantitate N-compounds (i) by class of compounds and (ii), within a class, by carbon number. Finally, quantitative comparison of GC x GC-NCD with conventional gas chromatography illustrates the benefits of GC x GC leading to an excellent correlation with results obtained by American Society for Testing Materials (ASTM) methods for the determination of basic/neutral nitrogen ratio in diesel samples.
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Affiliation(s)
- Frédérick Adam
- Institut Français du Pétrole, BP3, 69390 Vernaison, France
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44
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Tranchida PQ, Donato P, Dugo G, Mondello L, Dugo P. Comprehensive chromatographic methods for the analysis of lipids. Trends Analyt Chem 2007. [DOI: 10.1016/j.trac.2007.01.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Górecki T, Panić O, Oldridge N. Recent Advances in Comprehensive Two‐Dimensional Gas Chromatography (GC×GC). J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070600574762] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Tadeusz Górecki
- a Department of Chemistry , University of Waterloo , Waterloo, Canada
| | - Ognjen Panić
- a Department of Chemistry , University of Waterloo , Waterloo, Canada
| | - Nathan Oldridge
- a Department of Chemistry , University of Waterloo , Waterloo, Canada
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46
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Ryan D, Marriott P. Studies on thermionic ionisation detection in comprehensive two-dimensional gas chromatography. J Sep Sci 2006; 29:2375-82. [PMID: 17120822 DOI: 10.1002/jssc.200400033] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study explores the application of specific thermionic ionisation detection in comprehensive 2-D GC (GC x GC) and represents the first report of GC x GC with nitrogen phosphorus detection (GC x GC-NPD). Of particular interest is the performance of the NPD with respect to peak parameters of asymmetry and sensitivity. Since GC x GC produces much narrower peaks than obtained with fast GC (e.g. 100 ms vs. <1 s) the effect of detector response time and any lack of symmetry arising from the detection step is important if peak separation (resolution) is to be maintained. It was observed that detector gas flows had a significant impact on peak asymmetry and peak magnitude, and that optimisation of the detector was critical, particularly for complex sample analysis by GC x GC-NPD. Peak asymmetries ranging from As = 1.8 to 8.0 were observed under different conditions of detector gas flows. Comparison of GC x GC-NPD with GC x GC-flame ionisation detection (FID) showed the former to be approximately 20 times more sensitive for the detection of nitrogen-containing methoxypyrazines analytes, and GC x GC-NPD had a larger linear detection range compared to GC x GC-FID. Furthermore, comparison of GC x GC-NPD and GC x GC-TOFMS chromatograms for the analysis of coffee head-space demonstrated the benefits of selective detection, ultimately realised in a comparatively simplified contour plot.
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Affiliation(s)
- Danielle Ryan
- School of Applied Sciences, RMIT University, Melbourne, Victoria, Australia
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47
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Khummueng W, Trenerry C, Rose G, Marriott PJ. Application of comprehensive two-dimensional gas chromatography with nitrogen-selective detection for the analysis of fungicide residues in vegetable samples. J Chromatogr A 2006; 1131:203-14. [PMID: 16887126 DOI: 10.1016/j.chroma.2006.07.035] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2006] [Revised: 07/11/2006] [Accepted: 07/17/2006] [Indexed: 11/18/2022]
Abstract
Comprehensive two-dimensional gas chromatography (GCxGC) with nitrogen-phosphorus detection (NPD) has been investigated for the separation and quantitation of fungicides in vegetable samples. The detector gas flows (H(2), N(2) and air) were adjusted to achieve maximum response of signal whilst minimizing peak width. The comparison of different column sets and selection of the temperature program were carried out with a mixture of nine N-containing standard fungicides, eight of which were chlorinated. The results from GCxGC-NPD and GCxGC with micro electron-capture detection (muECD) were compared. External calibrations of fungicides were performed over a concentration range from 1 to 1,000 microgL(-1). The peak area calibration curves generally had regression coefficients of R(2)>0.9980, however for iprodione which was observed to undergo on-column degradation, an R(2) of 0.990 was found. The limit of detection (LOD) and limit of quantitation (LOQ) were less than about 74 and 246 ng L(-1), respectively. The intra-day and inter-day RSD values were measured for solutions of concentration 0.100, 0.500 and 1.50 mg L(-1). For the 0.500 mg L(-1) solution, intra- and inter-day precision of peak area and peak height for most of the pesticides were about 2% and 8%, respectively. Excellent linearity was observed for these standards, from 0.001 to 25.00 mg L(-1). The standard mixture peak positions were identified by using GCxGC with quadrupole mass spectrometry (qMS). To illustrate the potential and the versatility of both GCxGC-NPD and GCxGC-muECD, the method was applied to determination of fungicides in a vegetable extract. Decomposition of one fungicide standard (iprodione) during chromatography elution was readily observed in the two-dimensional (2D) GCxGC plot as a diagonal ridge response in the 2D chromatogram between the degrading compound and the decomposition product.
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Affiliation(s)
- Weeraya Khummueng
- Australian Centre for Research on Separation Science, School of Applied Sciences, RMIT University, GPO Box 2476V, Melbourne 3001, Australia
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48
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Andersson JT, Hegazi AH, Roberz B. Polycyclic aromatic sulfur heterocycles as information carriers in environmental studies. Anal Bioanal Chem 2006; 386:891-905. [PMID: 16924377 DOI: 10.1007/s00216-006-0704-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2006] [Revised: 05/31/2006] [Accepted: 07/21/2006] [Indexed: 10/24/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) play a huge role in environmental analytical chemistry, both as pollutants and as markers for many processes. On the other hand, polycyclic aromatic sulfur heterocycles (PASHs; heterocyclic compounds related to PAHs) have been studied far less intensely, but such studies may lead to a great deal of information not available through the study of PAHs. Here we discuss analytical aspects of PASHs in environmental matrices and their use as information carriers. Since PASHs accompany PAHs in sampling and work-up, it is not necessary to expend much extra analytical effort in order to analyze them. This work reviews how they can provide information on diverse processes such as petroleum, industrial and vehicular pollution, and sources of air and marine pollution.
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Affiliation(s)
- Jan T Andersson
- Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstrasse 30, 48149, Münster, Germany.
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49
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von Mühlen C, Khummueng W, Zini CA, Caramão EB, Marriott PJ. Detector technologies for comprehensive two-dimensional gas chromatography. J Sep Sci 2006; 29:1909-21. [PMID: 16970191 DOI: 10.1002/jssc.200500443] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The detector is an integral and important part of any chromatographic system. The chromatographic peak profiles (i.e. peak separation) should, ideally, be unaffected by the detector--it should only provide the sensing capacity required at the end of a column separation process. The relatively new technique of comprehensive 2-D GC (GC x GC) extends the performance of GC manyfold, but comes at a price--existing GC systems may not be adequately designed with the requirements of GC x GC in mind. This is primarily the need for precise measurement of very fast peaks entering the detector (e.g. as fast as 50 ms basewidth in some instances). The capacity of the detector to closely track a rapidly changing chromatographic peak profile depends on a number of factors, such as design of flow paths and make-up gas introduction, type of detector response mechanism, and the chemistry of the response. These factors are discussed here as a means to appreciate the technical demands of detection in GC x GC. The MS detector will not be included in this review.
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Affiliation(s)
- Carin von Mühlen
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Porto Alegre, RS, Brasil
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Adahchour M, Beens J, Vreuls R, Brinkman U. Recent developments in comprehensive two-dimensional gas chromatography (GC×GC). Trends Analyt Chem 2006. [DOI: 10.1016/j.trac.2006.03.002] [Citation(s) in RCA: 227] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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