Results 21 to 30 of about 43,067 (263)

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

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

Pulsed electron beams in ion mobility spectrometry

open access: yesReviews in Analytical Chemistry, 2012
Ion mobility spectrometry is a well-known technique used to analyze trace gases in ambient air. Typically, it works by employing a radioactive source to provide electrons with high energy to ionize the analytes in a series of chemical reactions.
Baether Wolfgang   +2 more
doaj   +1 more source

Electrospray Quadrupole Travelling Wave Ion Mobility Time-of-Flight Mass Spectrometry for the Detection of Plasma Metabolome Changes Caused by Xanthohumol in Obese Zucker (fa/fa) Rats

open access: yesMetabolites, 2013
This study reports on the use of traveling wave ion mobility quadrupole time-of-flight (ToF) mass spectrometry for plasma metabolomics. Plasma metabolite profiles of obese Zucker fa/fa rats were obtained after the administration of different oral doses ...
Claudia S. Maier   +8 more
doaj   +1 more source

Coulombic Effects in Ion Mobility Spectrometry [PDF]

open access: yesAnalytical Chemistry, 2009
Ion mobility spectrometry (IMS) has been increasingly employed in a number of applications. When coupled to mass spectrometry (MS), IMS becomes a powerful analytical tool for separating complex samples and investigating molecular structure. Therefore, improvements in IMS-MS instrumentation, e.g., IMS resolving power and sensitivity, are highly ...
Tolmachev, Aleksey V   +3 more
openaire   +3 more sources

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

Ion mobility spectrometry of N-methylimidazole and possibilities of its determination

open access: yesТонкие химические технологии, 2022
Objectives. To determine the ion mobility of N-methylimidazole, establish the structure of ions corresponding to characteristic signals, and determine the detection limit of N-methylimidazole on the ion-drift detector Kerber.Methods.
D. A. Aleksandrova   +9 more
doaj   +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

Quantification of Volatile Acetone Oligomers Using Ion-Mobility Spectrometry

open access: yesJournal of Analytical Methods in Chemistry, 2021
Background. Volatile acetone is a potential biomarker that is elevated in various disease states. Measuring acetone in exhaled breath is complicated by the fact that the molecule might be present as both monomers and dimers, but in inconsistent ratios ...
Tobias Hüppe   +5 more
doaj   +1 more source

Hadamard Transform Ion Mobility Spectrometry Based on Matrix Encoding Modulation

open access: yesSensors, 2023
Ion mobility spectrometry (IMS) has been widely used for the on-site detection of trace chemicals, but continue to suffer from a low duty cycle of ion injection.
Ke Chen, Lingfeng Li, Peng Li
doaj   +1 more source

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