Chemical characterization of petroleum is a challenging task due to its inherently complex
nature. For example, crude oil is believed to have as many or more compounds than the …

Owing to the increasing environmental and climate changes globally, there is an increasing
interest in the molecular‐level understanding of environmental organic compound mixtures …

The isotopic exchange approach is in use since the first observation of such reactions in
1933 by Lewis. This approach allows the investigation of the pathways of chemical and …

Mass spectrometry is widely used in studying the structures of compounds present in crude
oil. In this study, a novel mass spectrometer incorporating a cyclic ion mobility separator was …

The combined use of hydrogen/deuterium exchange (HDX) and mass spectrometry (MS),
referred to as HDX‐MS, is a powerful tool for exploring molecular edifices and has been …

The conversion of lignocellulosic biomass by pyrolysis or hydrothermal liquefaction gives
access to a wide variety of molecules that can be used as fuel or as building blocks in the …

Sample preparation and instrument parameters have regularly been demonstrated to impact
upon the observed results in atmospheric pressure photoionization, mass spectrometry …

To gain insight into the chemical composition and characteristics of petroleum, its
characterization and structural identification at the molecular level is essential. To this aim …

The conformations of glycans are crucial for their biological functions. In-electrospray
ionization (ESI) hydrogen/deuterium exchange-mass spectrometry (HDX-MS) is a promising …

Changes in the structure of oil compounds subjected to hydrodesulfurization were
investigated using ultrahigh-resolution mass spectrometry (UHR-MS) and cyclic ion mobility …