Comprehensive two dimensional gas chromatography with fast-quadrupole mass spectrometry detector analysis of polar compounds extracted from the bio-oil from the pyrolysis of sawdust

Schneider, Jaderson K.; Cunha, Michele Espinosa da; Santos, Anaí L. dos; Maciel, Gabriela P.S.; Brasil, Márcia Campos; Pinho, Andrea de Rezende; Mendes, Fabio Leal; Jacques, Rosângela Assis; Caramão, Elina Bastos

doi:10.1016/j.chroma.2014.06.053

Cited by 31 publications

(28 citation statements)

References 33 publications

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“…Bio‐oils are usually analyzed by GC × GC without any pretreatment apart from dilution in a proper solvent (e.g., MeOH, acetone, THF, etc. ), however some sample preparation methods have been proposed such as derivatization for the analysis of phenols, alcohols and acids, headspace solid phase microextraction (SPME) for the analysis of volatile organic carbons (VOCs), pressurized solvent fractionation, and liquid‐liquid extraction (LLE) with solvents such as hexane, dichloromethane, and chloroform …”

Section: Comprehensive and Hyphenated Chromatographic Techniquesmentioning

confidence: 99%

“…), however some sample preparation methods have been proposed such as derivatization for the analysis of phenols, alcohols and acids, 47 headspace solid phase microextraction (SPME) for the analysis of volatile organic carbons (VOCs), 48 pressurized solvent fractionation, 49 and liquid-liquid extraction (LLE) with solvents such as hexane, dichloromethane, and chloroform. 50 A typical GC × GC system consists of an injector, a primary oven which houses the secondary oven as well, two columns of different polarity and dimensions housed in the respective ovens, a modulator which is located between the two columns and the detector. The 'heart' of the GC × GC separation lies at the selected combination of columns and the modulator.…”

Section: Two-dimensional Gas Chromatography (Gc × Gc or 2dgc)mentioning

confidence: 99%

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Advanced analytical techniques for bio‐oil characterization

Michailof

Kalogiannis

Sfetsas

et al. 2016

WIREs Energy & Environment

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Bio-oil (pyrolysis oil) is the liquid product of biomass thermochemical conversion. It is a dark, viscous liquid that contains the depolymerization products of hemicellulose, cellulose, and lignin. The physicochemical properties of bio-oils are determined by employing the conventional methods for fuels analysis with proper adaptations. However, the detailed composition of bio-oils in terms of analytes as well as their concentration remains ambiguous and is a challenging task for analytical chemistry. The compounds in the bio-oil range from nonpolar (e.g., hydrocarbons) to highly polar (e.g., phenolics) and from volatile (e.g., organic acids) to nonvolatile (e.g., sugar derivatives), covering a molecular weight (MW) range of about 50-2000 Da. Hence a combination of analytical techniques such as high pressure liquid chromatography, gas chromatography (GC), gel permeation chromatography (GPC), nuclear magnetic resonance spectroscopy (NMR), and Fourier transform infrared spectroscopy (FTIR) are required to determine the bio-oil's composition. Despite the significant breakthroughs of these techniques, they face limitations regarding the sample pretreatment, the incomplete separation and determination of components, and the need of multiple analyses with each method for more complete results. The development of sophisticated, comprehensive, and hyphenated chromatographic and spectrometric techniques such as GC × GC, LC × LC, high-resolution mass spectrometry (HRMS), and 2D-NMR has brought actual advancement in the field of bio-oil analysis. GC × GC and LC × LC have allowed the development of qualitative and quantitative methods for the individual determination of lower MW compounds. However, HRMS and 2D-NMR have facilitated the elucidation of the structure of the higher MW components, offering insight in the effect of pyrolysis conditions on biomass depolymerization and the possibilities for further upgrading of bio-oils.

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Section: Comprehensive and Hyphenated Chromatographic Techniquesmentioning

confidence: 99%

Section: Two-dimensional Gas Chromatography (Gc × Gc or 2dgc)mentioning

confidence: 99%

Advanced analytical techniques for bio‐oil characterization

Michailof

Kalogiannis

Sfetsas

et al. 2016

WIREs Energy & Environment

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“…GC × GC with a quadrupole mass spectrometric detector (qMS) was used in the research works of da Cunha et al [156] and Schneider et al [157]. Da Cunha et al have performed the fractionation of sugar cane straw bio-oil, using a silica column with pressurized liquids.…”

Section: Application Of Gc × Gc To Pyrolytic Liquids Derived From Biomentioning

confidence: 99%

Comprehensive Two-Dimensional Gas Chromatography and Its Application to the Investigation of Pyrolytic Liquids

Maciel¹,

Silva²,

Bispo³

et al. 2017

Pyrolysis

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The chapter presents basic principles of one-dimensional gas chromatography (1D-GC) and comprehensive two-dimensional gas chromatography (GC × GC) related to the main advantages of the two-dimensional technique, as well as its application to the study of organic compounds in liquids derived from coal, mainly through pyrolysis and extraction. It also shows the investigation of compounds contained in bio-oils obtained from biomass through pyrolysis, using GC × GC. Advances in scientific knowledge related to the composition of these complex matrices are shown through different examples of GC × GC analyses, such as the identification of trace compounds that would not be perceived by 1D-GC, organized patterns of elution of structurally related compounds that help their identification, etc. Examples shown make it clear that GC × GC is the technique of choice to elucidate composition of these complex matrices.

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“…At present, publications devoted to GCxGC analysis of the liquid products of pyrolysis of various coals [3,7] can be found in the literature. Due to increased interest in renewable fuel resources, the GCxGC analysis of BO is reported in a greater number of works [9][10][11][12][13][14]. These works deal with GCxGC analysis of components in the initial BO [9][10][11][12] and its fractions [11,14].…”

Section: Introductionmentioning

confidence: 99%

Separation of phenol-containing pyrolysis products using comprehensive two-dimensional chromatography with columns based on pyridinium ionic liquids

Шашков

Sidelnikov

2016

J. Sep. Science

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We describe the application of columns with highly polar stationary liquid phases based on pyridinium ionic liquids for the two-dimensional chromatography separation of bio-oil and product of coal pyrolysis. By using inverse combination columns-a first ionic liquid column and a second nonpolar column-good separation results have been obtained. In the analysis of coal pyrolysis products, the suggested approach provides a much better resolution between components in comparison with a less polar first-dimension column (based on polyethylene glycol). A good selectivity for the peaks of phenols is observed, and the group of phenols is well detached and separated from the group of diaromatics. A good separation picture was obtained also for bio-oil, the groups of phenols and guaiacol derivatives are distinguished with good resolution of substances within each group.

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Comprehensive two dimensional gas chromatography with fast-quadrupole mass spectrometry detector analysis of polar compounds extracted from the bio-oil from the pyrolysis of sawdust

Cited by 31 publications

References 33 publications

Advanced analytical techniques for bio‐oil characterization

Advanced analytical techniques for bio‐oil characterization

Comprehensive Two-Dimensional Gas Chromatography and Its Application to the Investigation of Pyrolytic Liquids

Separation of phenol-containing pyrolysis products using comprehensive two-dimensional chromatography with columns based on pyridinium ionic liquids

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