Results 11 to 20 of about 2,465,079 (227)

The origin of isomerization of aniline revealed by high kinetic energy ion mobility spectrometry (HiKE-IMS) [PDF]

Physical Chemistry Chemical Physics, 2023
Three ion mobility peaks of 4-fluoroaniline, including the para -protonated and molecular ion species, when measured with a high-kinetic energy ion mobility spectrometer and peak abundances depend only on the ionization settings.
Cameron N. Naylor, Christoph Schaefer, Ansgar T. Kirk, Stefan Zimmermann   +3 more
openaire   +3 more sources

Ion mobility spectrometry‐mass spectrometry (IMS‐MS) of small molecules: Separating and assigning structures to ions [PDF]

Mass Spectrometry Reviews, 2012
AbstractThe phenomenon of ion mobility (IM), the movement/transport of charged particles under the influence of an electric field, was first observed in the early 20th Century and harnessed later in ion mobility spectrometry (IMS). There have been rapid advances in instrumental design, experimental methods, and theory together with contributions from ...
Lapthorn, Cris, Pullen, Frank, Chowdhry, Babur Z.   +2 more
openaire   +3 more sources

Collision-Induced Unfolding of Native-like Protein Ions Within a Trapped Ion Mobility Spectrometry Device [PDF]

, 2021
Native mass spectrometry and collision-induced unfolding (CIU) workflows continue to grow in utilization due to their abil-ity to rapidly characterize protein conformation and stability.
Katherine, Graham, Kemi, Osho, Nicholas, Borotto, Talitha, Richards   +3 more
core   +1 more source

Discrimination of different edible vegetable oils based on GC-IMS and SIMCA

CyTA - Journal of Food, 2023
Ion mobility spectrometry coupled to gas-chromatographic (GC-IMS) is tested regarding their ability to analyze various refined edible vegetable oils, including sunflower seed, rapeseed, sesame, soybean, peanut, corn, camellia, linseed, walnut, coconut ...
Dechun Geng, Xinyu Chen, Daoli Lu, Bin Chen   +3 more
doaj   +1 more source

High-Resolution Ion Mobility Spectrometry Mass Spectrometry for Isomeric Separation of Prostanoids after Girard's reagent T Derivatization

, 2023
RATIONALE: Isomeric separation of prostanoids is often a challenge and requires chromatography and time-consuming sample preparation. Multiple prostanoid isomers have distinct in vivo functions crucial to understand the inflammation process, including ...
Rob J. Vreeken, Hadavi, D, Cooper-Shepherd, D, Vreeken, R J, Ynze Mengerink, Mengerink, Y, Martin Palmer, Maarten Honing, Palmer, M, Jan Jordens, Siegel, T Porta, Bowman, A P, Honing, M, James Langridge, Andrew P. Bowman, Tiffany Porta Siegel, Lamont, L, Darya Hadavi, Lieke Lamont, Ron M. A. Heeren, Dale Cooper‐Shepherd, Langridge, J, Heeren, R M A, Flinders, B, Jordens, J, Bryn Flinders, Vreeken, R J; id_orcid   +26 more
core   +1 more source

Separation of different ion structures in atmospheric pressure photoionization-ion mobility spectrometry-mass spectrometry (APPI-IMS-MS) [PDF]

Journal of the American Society for Mass Spectrometry, 2010
This study demonstrates how positive ion atmospheric pressure photoionization-ion mobility spectrometry-mass spectrometry (APPI-IMS-MS) can be used to produce different ionic forms of an analyte and how these can be separated. When hexane:toluene (9:1) is used as a solvent, 2,6-di-tert-butylpyridine (2,6-DtBPyr) and 2,6-di-tert-4-methylpyridine (2,6 ...
Laakia, Jaakko, Adamov, Alexey, Jussila, Matti, Pedersen, Christian S., Sysoev, Alexey A., Kotiaho, Tapio   +5 more
openaire   +2 more sources

High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS) at 40 mbar [PDF]

Journal of the American Society for Mass Spectrometry, 2020
High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) are usually operated at an absolute pressure of 20 mbar reaching high reduced electric field strengths of up to 125 Td for controlled reaction kinetics. This significantly increases the linear range and limits chemical cross sensitivities.
Florian Schlottmann, Ansgar T. Kirk, Maria Allers, Alexander Bohnhorst, Stefan Zimmermann   +4 more
openaire   +2 more sources

Sensing Precursors of Illegal Drugs—Rapid Detection of Acetic Anhydride Vapors at Trace Levels Using Photoionization Detection and Ion Mobility Spectrometry

Molecules, 2020
Sensitive real-time detection of vapors produced by the precursors, reagents and solvents used in the illegal drugs manufacture represents a priority nowadays.
Victor Bocos-Bintintan, George-Bogdan Ghira, Mircea Anton, Aurel-Vasile Martiniuc, Ileana-Andreea Ratiu   +4 more
doaj   +1 more source

Collision Cross Section Prediction with Molecular Fingerprint Using Machine Learning

Molecules, 2022
High-resolution mass spectrometry is a promising technique in non-target screening (NTS) to monitor contaminants of emerging concern in complex samples. Current chemical identification strategies in NTS experiments typically depend on spectral libraries,
Fan Yang, Denice van Herwerden, Hugues Preud’homme, Saer Samanipour   +3 more
doaj   +1 more source

Ion mobility spectrometry-tandem mass spectrometry strategies for the on-line monitoring of a continuous microflow reaction

, 2022
Continuous flow chemistry is an efficient, sustainable and green approach for chemical synthesis that surpasses some of the limitations of the traditional batch chemistry.
Han, P.L., Hadavi, D., Honing, M.
core   +1 more source