Results 71 to 80 of about 24,155 (261)

Using the Expectation Maximization Algorithm with Heterogeneous Mixture Components for the Analysis of Spectrometry Data [PDF]

open access: yes, 2014
Coupling a multi-capillary column (MCC) with an ion mobility (IM) spectrometer (IMS) opened a multitude of new application areas for gas analysis, especially in a medical context, as volatile organic compounds (VOCs) in exhaled breath can hint at a ...
Kopczynski, Dominik, Rahmann, Sven
core  

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

open access: yesInternational 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   +2 more
openaire   +2 more sources

Mass spectrometry imaging of N‐linked glycans: Fundamentals and recent advances

open access: yesMass Spectrometry Reviews, EarlyView.
Abstract With implications in several medical conditions, N‐linked glycosylation is one of the most important posttranslation modifications present in all living organisms. Due to their nontemplate synthesis, glycan structures are extraordinarily complex and require multiple analytical techniques for complete structural elucidation.
Tana V. Palomino, David C. Muddiman
wiley   +1 more source

Cluster Measurements at CLOUD using a High Resolution Ion Mobility Spectrometer - Mass Spectrometer Combination [PDF]

open access: yes, 2013
Mass spectrometry is powerful tool for environmental and atmospheric chemistry analysis. Modern mass spectrometers demonstrate low detection limits, high sensitivity, and high resolving power.
Alexey Adamov   +5 more
core   +1 more source

A Perspective of Multi‐Reflecting TOF MS

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Time‐of‐flight mass spectrometry (TOF MS) excels in rapid and high‐sensitivity analysis, making it a cornerstone of analytical chemistry. But as sample complexity explodes in omics studies, so does the need for higher resolving power to ensure accurate results.
A. N. Verenchikov   +3 more
wiley   +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

Recent trends and developments in pyrolysis-gas chromatography: review [PDF]

open access: yes, 2008
Pyrolysis-gas chromatography (Py-GC) has become well established as a simple, quick and reliable analytical technique for a range of applications including the analysis of polymeric materials.
Arias   +179 more
core   +1 more source

Cold EI—The Way to Improve GC‐MS and Increase Its Range of Applications

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Gas chromatography‐mass spectrometry (GC‐MS) with Cold electron ionization (EI) is based on interfacing the GC and MS with a supersonic molecular beam (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a contact‐free fly‐through ion source (hence the name Cold EI).
Aviv Amirav   +3 more
wiley   +1 more source

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

open access: yesMolecules, 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   +5 more
doaj   +1 more source

Structural Evidence for the Tetrameric Assembly of Chemokine CCL11 and the Glycosaminoglycan Arixtra™. [PDF]

open access: yes, 2013
Understanding chemokine interactions with glycosaminoglycans (GAG) is critical as these interactions have been linked to a number of inflammatory medical conditions, such as arthritis and asthma.
Dykstra, Andrew B   +2 more
core   +2 more sources

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