Characterization of thermal and catalytic pyrolysis bio-oils by high-resolution techniques: 1 H NMR, GC × GC-TOFMS and FT-ICR MS

Tessarolo, Nathalia; Silva, Raquel V.S.; Vanini, Gabriela; Casilli, Alessandro; Ximenes, Vitor Loureiro; Mendes, Fabio Leal; Pinho, Andrea de Rezende; Romão, Wanderson; Castro, Eustáquio Vinícius Ribeiro de; Kaiser, Carlos R.; Azevedo, Débora A.

doi:10.1016/j.jaap.2015.11.007

Cited by 85 publications

(67 citation statements)

References 39 publications

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“…Tessarolo et al 22 used 1 H NMR, GCxGC-TOFMS, and (-) ESI FT-ICR MS to characterize sugarcane bagasse and pinewood pyrolysis bio-oils before and after catalytic treatment on zeolite. Deoxygenation efficiency of the catalytic process was assessed by an increase of the relative abundance of less oxygenated compounds.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Fast Pyrolysis of Biomass over Microporous and Hierarchical Zeolites: Characterization of Heavy Products

Hertzog

Carré

Jia

et al. 2018

ACS Sustainable Chem. Eng.

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Section: Introductionmentioning

confidence: 99%

Catalytic Fast Pyrolysis of Biomass over Microporous and Hierarchical Zeolites: Characterization of Heavy Products

Hertzog

Carré

Jia

et al. 2018

ACS Sustainable Chem. Eng.

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“…The improvement in the chromatographic signal (narrower peaks) and decrease in the signal noise ratio in the fast-GC × GC analysis, allowed the tentatively identification of higher number of compounds in shorter period. Pine wood and sugarcane GC × GC/TOFMS 104 300-400 [31] This is the first time that liquid cryogen-free thermal modulator was used for the analysis of bio-oils. The major studies in bio-oil analysis in GC × GC technique were carried out using cryogenic modulators [11,13,19], and proves that the performance of the liquid cryogen-free thermal modulator it is very similar to the cryogenic modulator.…”

Section: Real Sample Analysismentioning

confidence: 99%

Fast two‐dimensional gas chromatography applied in the characterization of bio‐oil from the pyrolysis of coconut fibers

Schena

Farrapeira

Bjerk

et al. 2019

Separation Science Plus

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The goal of this paper is the evaluation of fast two‐dimensional gas chromatography applied to bio‐oil samples. Bio‐oils are complex matrixes that usually are analyzed by conventional gas chromatography, involving long columns, long time of analysis due to slow heating rates, and consequently, high cost associated to time consumed. Fast gas chromatography techniques are based on the use of narrow capillary columns that allow the achievement high‐speed separations for complex samples, maintaining excellent resolution. Firstly, the two‐dimensional gas chromatography method was optimized varying the heating rate (10, 15 and 20°C min−1) and achieving the optimal separation at 15°C min−1. This method allies a good separation of bio‐oil constituents with shorter time analysis. The developed method and the traditional conventional two‐dimensional gas chromatography method (used in previous studies) were applied in the analysis of a mixture of 30 standard compounds. Despite coelutions of short retention time peaks (compounds with very similar physical‐chemical properties), the fast two‐dimensional gas chromatography method showed an increase in chromatographic signal and a noise reduction. Good results were also obtained in the real bio‐oil sample. Fast two‐dimensional gas chromatography maintained all the chromatographic information from conventional two‐dimensional gas chromatography, reducing drastically the total time of analysis.

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“…Since several years, HRMS techniques alone are being increasingly used to describe the composition of biomass fast pyrolysis oils [3]. In particular, FT-ICR/MS has gained in interest over the past ten years, providing key information in terms of m/z ratios, molecular formulae and double bound equivalent (DBE) for compounds being detected essentially by electrospray ionization source, and more scarcely by APPI [20][21][22][23][24][25]. In this work, the studied bio-oil was also analyzed by FT-ICR/MS using an APCI source in negative mode and the resulting data were compared with those obtained in SFC-(-)APCI/HRMS.…”

Section: Comparison Of Sfc-hrms and Ft-icr/ms Analysis Of A Biomass Fmentioning

confidence: 99%

Ultra-high performance supercritical fluid chromatography hyphenated to atmospheric pressure chemical ionization high resolution mass spectrometry for the characterization of fast pyrolysis bio-oils

Crépier

Masle

Charon

et al. 2018

Journal of Chromatography B

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Extensive characterization of complex mixtures requires the combination of powerful analytical techniques. A Supercritical Fluid Chromatography (SFC) method was previously developed, for the specific case of fast pyrolysis bio oils, as an alternative to gas chromatography (GC and GC × GC) or liquid chromatography (LC and LC × LC), both separation methods being generally used prior to mass spectrometry (MS) for the characterization of such complex matrices. In this study we investigated the potential of SFC hyphenated to high resolution mass spectrometry (SFC-HRMS) for this characterization using Negative ion Atmospheric Pressure Chemical ionization ((-)APCI) for the ionization source. The interface between SFC and (-)APCI/HRMS was optimized from a mix of model compounds with the objective of maximizing the signal to noise ratio. The main studied parameters included both make-up flow-rate and make-up composition. A methodology for the treatment of APCI/HRMS data is proposed. This latter allowed for the identification of molecular formulae. Both SFC-APCI/HRMS method and data processing method were applied to a mixture of 36 model compounds, first analyzed alone and then spiked in a bio-oil. In both cases, 19 compounds could be detected. Among them 9 could be detected in a fast pyrolysis bio-oil by targeted analysis. The whole procedure was applied to the characterization of a bio-oil using helpful representations such as mass-plots, van Krevelen diagrams and heteroatom class distributions. Finally the results were compared with those obtained with a Fourier Transform ion-cyclotron resonance mass spectrometer (FT-ICR/MS).

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Characterization of thermal and catalytic pyrolysis bio-oils by high-resolution techniques: 1 H NMR, GC × GC-TOFMS and FT-ICR MS

Cited by 85 publications

References 39 publications

Catalytic Fast Pyrolysis of Biomass over Microporous and Hierarchical Zeolites: Characterization of Heavy Products

Catalytic Fast Pyrolysis of Biomass over Microporous and Hierarchical Zeolites: Characterization of Heavy Products

Fast two‐dimensional gas chromatography applied in the characterization of bio‐oil from the pyrolysis of coconut fibers

Ultra-high performance supercritical fluid chromatography hyphenated to atmospheric pressure chemical ionization high resolution mass spectrometry for the characterization of fast pyrolysis bio-oils

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