Optimisation of LDI (+)-FT-ICR MS analysis of asphaltenes to prevent the formation of fullerenes

VR Fonseca, GS Folli, LM Souza, TMC Pereira… - Fuel, 2023 - Elsevier
mass spectrometry (LDI(+) FT-ICR MS) for analysing asphaltenes, aiming to avoid the formation
of fullerenes … Subsequently, we analysed the same asphaltene sample using the positive …

Lessons learned from a decade-long assessment of asphaltenes by ultrahigh-resolution mass spectrometry and implications for complex mixture analysis

ML Chacon-Patino, MR Gray, C Rüger… - Energy & …, 2021 - ACS Publications
… coupled to (+) APPI FT-ICR MS demonstrate that asphaltenes consist of a structural
continuum of … (168−170) DBE values above this limit contain nonplanar aromatic cores (fullerene-like …

Characterization and Structural Classification of Heteroatom Components of Vacuum-Residue-Derived Asphaltenes Using APPI (+) FT-ICR Mass Spectrometry

JW Park, Y Cho, S Son, S Kim, KB Lee - Energy & Fuels, 2021 - ACS Publications
… were analyzed using FT-ICR MS, and, particularly, the … 1000 m/z were typically observed
using FT-ICR MS and the m/z … whether fullerene-like structure really exists in asphaltenes and …

In-depth characterization of light, medium and heavy oil asphaltenes as well as asphaltenes subfractions

M Salehzadeh, MM Husein, C Ghotbi, B Dabir… - Fuel, 2022 - Elsevier
analysis of the structure of asphaltenes extracted from light, medium, and heavy oils is provided,
together with analysis of three subfractions of the medium oil asphalteneanalysis, EDX, …

Toward molecular characterization of asphaltene from different origins under different conditions by means of FT-IR spectroscopy

I Zojaji, A Esfandiarian, J Taheri-Shakib - Advances in Colloid and Interface …, 2021 - Elsevier
asphaltene is of great interest to the industry. In order to identify the molecular structure of
asphaltene, numerous methods such as elemental analysis [… cyclotron resonance (FT-ICR) [8,9]…

Fractionation and characterization of petroleum asphaltene: focus on metalopetroleomics

F Zheng, Q Shi, GS Vallverdu, P Giusti, B Bouyssiere - Processes, 2020 - mdpi.com
… ESI FT-ICRMS has been widely used to analyze the molecular composition of heteroatomic
compounds in asphaltenes … The highest mass accuracy of FT-ICR MS improves analysis for …

Analysis of Distribution and Structures of Heteroatom Compounds in Asphaltene of Medium/Low Temperature Coal Tar by Negative Anion Mode ESI FT-ICR MS

X Fan, D Li, L Cui, R Shao, C Chang, L Yan, B Yang - Sustainability, 2022 - mdpi.com
… for M/LTCT asphaltenes. In this work, negative ion ESI FT-ICR MS was used to explore the
occurrence and molecular composition of OCCs, NCCs, and SCCs in M/LTCT asphaltenes, …

Characterization of crude oil molecules adsorbed onto carbonate rock surface using LDI FT-ICR MS

N Terra, LM Ligiero, V Molinier, P Giusti, N Agenet… - Energy & …, 2022 - ACS Publications
analysis of carbonate rock powder that was put in contact with crude oil is proposed, and a
laser desorption ionization (LDI) source coupled to FT-ICR is … The amount of asphaltenes was …

Isolation and Characterization of Interfacially Active Molecules from Asphaltene and Maltene Fractions

JC Silva, LM Souza, VR Fonseca, W Romão… - Energy & …, 2023 - ACS Publications
… of molecules to go to the interface … −) FT-ICR MS technique provided information about the
abundances of different classes of compounds in the fractions and subfractions analyzed. The …

[HTML][HTML] Molecular representation of coal-derived asphaltene based on high resolution mass spectrometry

Y Zhu, C Du, H Zheng, F Wang, F Tian, X Liu… - Arabian Journal of …, 2022 - Elsevier
… ion cyclotron resonance mass spectrometry (FT-ICR MS) coupled … FT-ICR MS can provide
very meaningful qualitative analysis … of molecular ionized fragments, although it could not get a …