Results 31 to 40 of about 277,596 (351)

High-Pressure Ion Mobility Spectrometry [PDF]

open access: yesAnalytical Chemistry, 2009
The effects of above-ambient pressure on ion mobility on resolving power, resolution, and ion current were investigated using a small, stand-alone ion mobility spectrometer (IMS). This work demonstrates the first example of ion mobility spectrometry at pressures above ambient.
Eric J, Davis   +4 more
openaire   +2 more sources

Differential ion mobility mass spectrometry in immunopeptidomics identifies neoantigens carrying colorectal cancer driver mutations

open access: yesCommunications Biology, 2022
An optimized method for mass spectrometry based immunopeptidomics analysis using high-field asymmetric waveform ion mobility spectrometry is presented and identifies 44,815 HLA-bound peptides (HLAp) from colorectal cancer samples.
Yuriko Minegishi   +8 more
doaj   +1 more source

Recent Progress in Protein Stereochemical Modifications Revealed by Ion Mobility-Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2022
Protein stereochemical modification (SCM) is a unique type of low-abundance post-translational modification associated with many human diseases. Because it does not change the molecular weight of proteins, traditional proteomics methods are generally not
XU Xia1   +3 more
doaj   +1 more source

Ion mobility spectrometry: history, characteristics and applications

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2012
Ion mobility spectrometry (IMS) is an analytical technique that separates ions in the gas phase. Ions are separated at atmospheric pressure under the influence of an electric field, according to their size and shape.
Roberto Fernández Maestre
doaj   +1 more source

Comprehensive spectral libraries for various rabbit eye tissue proteomes

open access: yesScientific Data, 2022
Measurement(s) database type spectral library Technology Type(s) ion mobility spectrometry-mass spectrometry Sample Characteristic - Organism Oryctolagus cuniculus Sample Characteristic - Environment eye Sample Characteristic - Location United States of ...
Guoting Qin   +4 more
doaj   +1 more source

The detection of wound infection by ion mobility chemical analysis [PDF]

open access: yes, 2020
Surgical site infection represents a large burden of care in the National Health Service. Current methods for diagnosis include a subjective clinical assessment and wound swab culture that may take several days to return a result.
Bechar, Janak   +4 more
core   +1 more source

Rapid Characterization of Per- and Polyfluoroalkyl Substances (PFAS) by Ion Mobility Spectrometry-Mass Spectrometry (IMS-MS).

open access: yesAnalytical Chemistry, 2020
Per- and polyfluoroalkyl substances (PFAS) are an ensemble of persistent organic pollutants of global interest because of their associations with adverse health outcomes.
J. Dodds   +3 more
semanticscholar   +1 more source

Orthogonal extraction ion mobility spectrometry [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2006
Ion Mobility Spectrometry is a powerful tool for the study of molecular conformations, separation of mass isomers, and analysis of complex mixtures and suppression of chemical background. The factors that limit the capabilities of the technique include its relatively low resolving power and duty cycle.
openaire   +2 more sources

Can ion mobility mass spectrometry and density functional theory help elucidate protonation sites in 'small' molecules? [PDF]

open access: yes, 2013
Ion mobility spectrometry-mass spectrometry (IMS-MS) offers an opportunity to combine measurements and/or calculations of the collision cross-sections and subsequent mass spectra with computational modelling in order to derive the three-dimensional ...
Chowdhry, Babur Z.   +4 more
core   +1 more source

Recent Advances in Small Molecule Metabolites Analysis by Ion Mobility-Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2022
Recently, different types of ion mobility techniques have sprung up. Combined with mass spectrometry, the utility of ion mobility spectrometry has been enhanced in metabolomics, natural products, characterization of supramolecular materials, and other ...
LIU Juan1,2   +4 more
doaj   +1 more source

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