Results 71 to 80 of about 7,880 (221)

First Evidence of “Earth Wax” Inside the Casting Molds from the Roman Era

Molecules, 2021
This research was focused on the analysis of material composition and organic residues present in three molds found in the Moravian region (Czech Republic) belonging to the Roman era.
Klára Jagošová, Jan Jílek, Pavel Fojtík, Ivan Čižmář, Miroslav Popelka, Ondřej Kurka, Lukáš Kučera   +6 more
doaj   +1 more source

Ion mobility spectrometry in space exploration

, 2018
Ion mobility spectrometry (IMS) has proven to be an effective tool for chemical detection and identification. Ion mobility spectrometers can be manufactured in small, rugged and portable designs and have been used in several mission critical ...
Kim, HI, Paul V. Johnson, Luther W. Beegle, Isik Kanik, Gary A. Eiceman   +4 more
core   +1 more source

Li + and Li + I − Li + ions Solvated by 1,4-dioxane: An ion Mobility Spectrometry-Mass Spectrometry Study

, 2021
Electrospray ionization (ESI) and ion mobility spectrometry-mass spectrometry (IMS-MS) were employed to inves- tigate the solvated structures of ionic species in the lithium iodide electrolyte solution in the gas phase.
SEO, JONGCHEOL, CHOI, YUNSEOP, Inyong Ji
core   +1 more source

Cryogenic Infrared Spectroscopy Unmasks Gas‐Phase Charge Migration in Mucin‐Type O‐Glycans

Small, EarlyView.
Protons in a sugar rush: O‐glycans are vital biomolecules, challenging to analyze due to isomeric forms. Using ion mobility spectrometry, cryogenic IR spectroscopy, and ab initio calculations, isomeric O‐glycan cores can be distinguished. At cryogenic temperatures, multiple deprotomers were identified, which interconvert at ambient conditions via rapid
Marc Safferthal, Gurpur Rakesh D. Prabhu, América Y. Torres‐Boy, Jerome Riedel, Leïla Bechtella, Wesley Pietsch, Gerard Meijer, Gert von Helden, Gaël M. Vos, Kevin Pagel   +9 more
wiley   +1 more source

Applications of Ion Mobility Spectrometry (IMS) to the Analysis of gamma-Hydroxybutyrate and gamma-Hydroxyvalerate in Toxicological Matrices [PDF]

Journal of Analytical Toxicology, 2006
The predator drug gamma-hydroxybutyrate (GHB) and its lactone form gamma-butyrolactone (GBL) continue to present significant analytical challenges to forensic toxicologists and chemists. The five-carbon analogue (gamma hydroxyvalerate GHV) and the corresponding lactone GVL) are emerging as substitutes for GHB, adding further complications. Ion mobility
Jennifer, Mercer, Diaa, Shakleya, Suzanne, Bell   +2 more
openaire   +2 more sources

Metabolic profiling of human blood by high-resolution ion mobility mass spectrometry (IM-MS) [PDF]

International Journal of Mass Spectrometry, 2010
A high resolution ion mobility time-of-flight mass spectrometer with electrospray ionization source (ESI-IM-MS) was evaluated as an analytical method for rapid analysis of complex biological samples such as human blood metabolome was investigated.
Prabha, Dwivedi, Albert J, Schultz, Herbert H, Hill   +2 more
openaire   +2 more sources

Ion Mobility Spectrometry in Food Analysis: Principles, Current Applications and Future Trends

Molecules, 2019
In the last decade, ion mobility spectrometry (IMS) has reemerged as an analytical separation technique, especially due to the commercialization of ion mobility mass spectrometers. Its applicability has been extended beyond classical applications such as
Maykel Hernández-Mesa, David Ropartz, Ana M. García-Campaña, Hélène Rogniaux, Gaud Dervilly-Pinel, Bruno Le Bizec   +5 more
doaj   +1 more source

Ion Mobility Mass Spectrometry Reveals Rare Sialylated Glycosphingolipid Structures in Human Cerebrospinal Fluid

Molecules, 2022
Gangliosides (GGs) represent an important class of biomolecules associated with the central nervous system (CNS). In view of their special role at a CNS level, GGs are valuable diagnostic markers and prospective therapeutic agents.
Mirela Sarbu, Dragana Fabris, Željka Vukelić, David E. Clemmer, Alina D. Zamfir   +4 more
doaj   +1 more source

Adduct ion formation as a tool for the molecular structure assessment of ten isomers in traveling wave and trapped ion mobility spectrometry

, 2019
Rationale The separation of isomeric compounds with major differences in their physiochemical and pharmacokinetic properties is of particular importance in pharmaceutical R&D.
Jordens, Jan, Cuyckens, Filip, Ynze Mengerink, Hadavi, Darya, Jan Jordens, Filip Cuyckens, Erik de Lange, Mengerink, Ynze, de Lange, Erik, Darya Hadavi, Maarten Honing, Honing, Maarten   +11 more
core   +1 more source

Ion Mobility Spectrometry–Mass Spectrometry Performance Using Electrodynamic Ion Funnels and Elevated Drift Gas Pressures

, 2007
The ability of ion mobility spectrometry coupled with mass spectrometry (IMS-MS) to characterize biological mixtures has been illustrated over the past eight years.
David C. Prior, Mikhail E. Belov, Prior, David, Belov, Mikhail E., Brian H. Clowers, Prior, David C., Tang, Keqi, Keqi Tang, Clowers, Brian, Baker, Erin Shammel, Clowers, Brian H., Belov, Mikhail, Tolmachev, Aleksey V., Smith, Richard, Tolmachev, Aleksey, Li, Fumin, Aleksey V. Tolmachev, Baker, Erin, Erin Shammel Baker, Richard D. Smith, Smith, Richard D., Fumin Li   +21 more
core   +1 more source