Asphaltenes, complex aromatic compounds from various carbonaceous sources, could be
obtained by solvent dissolution, filtration and adsorption. It was difficult to clarify the …

Recent developments in atmospheric pressure photoionization (APPI), which is one of the
three most important ionization techniques in liquid chromatography‐mass spectrometry, are …

We describe complex organic mixture analysis by 21 tesla (T) Fourier transform ion cyclotron
resonance mass spectrometry (FT-ICR MS). Ultrahigh mass-resolving power (m/Δ m 50%> 2 …

In petroleum science, asphaltenes are well-known as the most refractory fraction of crude oil
and remain infamous for problems in production, transportation, and refining processes …

Asphaltene structure is one of the most controversial topics in petroleum chemistry. The
controversy is centered on the organization of aromatic cores within asphaltene molecules …

沥青质是石油或岩石可溶有机质的重要组分之一, 通常具有复杂的大分子结构和较高的分子量.
沥青质中包裹(或键合) 的生物标志物被认为具有重要的油气地球化学研究价值 …

Among the different types of available high-resolution mass spectrometers, Fourier transform
ion cyclotron resonance mass spectrometry (FT-ICR MS) and Orbitrap-MS are important …

Asphaltenes are n-alkane insoluble compounds found in crude oils and heavy fuels (high
and non-boiling petroleum fractions). Asphaltene molecular structure has not been fully …

252 literature sources and about 5000 crude oil assays were reviewed in this work. The
review has shown that the petroleum characterization can be classified in three categories …

Direct “dilute and shoot” mass spectral analysis of complex naturally-occurring mixtures has
become the “standard” analysis in environmental and petrochemical science, as well as in …