Results 131 to 140 of about 20,265 (247)

Multi-Capillary Column-Ion Mobility Spectrometry of Volatile Metabolites Emitted by Saccharomyces Cerevisiae

Metabolites, 2014
Volatile organic compounds (VOCs) produced during microbial fermentations determine the flavor of fermented food and are of interest for the production of fragrances or food additives.
Christoph Halbfeld, Birgitta E. Ebert, Lars M. Blank   +2 more
doaj   +1 more source

Fundamental studies of gas phase ionic reactions by ion mobility spectrometry [PDF]

, 1995
Ion mobility spectrometry (IMS) provides a promising approach to the study of gas phase ionic reactions in buffer gases at unusually high pressures. This point is illustrated here by studies of the Sn2 nucleophilic displacement reaction, Cl(-) + CH3Br ...
Knighton, W. B., Sahlstrom, K. E., Giles, K., Grimsrud, E. P.   +3 more
core   +1 more source

Inverse Ion Mobility Spectrometry [PDF]

, 2016
A novel method is proposed for enhancing the separation power of ion mobility spectrometry (IMS) and other similar pulsed techniques, such as time-of-flight mass spectrometry.
Mahmoud Tabrizchi (835164), Elham Jazan (2324905)   +1 more
core   +1 more source

Mass spectrometric analysis of pilus assembly, amyloid fibril formation, and membrane proteins in their native state [PDF]

, 2012
Structural analysis of proteins and their complexes is crucial to understanding protein function. This thesis demonstrates the application of mass spectrometry (MS) to the study of pilus assembly on Gram-negative bacteria and amyloid formation in ...
Leney, Aneika Corrine
core  

Fingerprinting of Green Arabica Coffee Volatile Organic Compounds (VOCs): HS-GC-IMS Versus GC × GC-MS

International Journal of Food Science
This study compared two nontargeted analytical techniques—headspace gas chromatography–ion mobility spectrometry (HS-GC-IMS) and comprehensive two-dimensional gas chromatography–mass spectrometry (GC × GC-MS)—to fingerprint the volatile organic compounds
Matteo Bordiga, Vincenzo Disca, Marcello Manfredi, Elettra Barberis, Francesca Carrà, Luciano Navarini, Valentina Lonzarich, Marco Arlorio   +7 more
doaj   +1 more source

A fusion strategy of multivariate flavor analysis techniques for the discrimination of aged sauce-flavor Baijiu

Food Chemistry: X
In the present work, effective methods for determining the age of sauce-flavor Baijiu by multivariate data analysis and machine learning techniques were explored.
Dan Wang, Yan Chen, Xinyu Ma, Xiaobing Zhang, Ji Zhang, Siqian Guo, Jingming Li, Liping Xiang   +7 more
doaj   +1 more source

Third International Workshop on Ion Mobility Spectrometry [PDF]

, 1995
Basic research in ion mobility spectrometry has given rise to rapid advancement in hardware development and applications. The Third International Workshop on Ion Mobility Spectrometry (IMS) was held October 16-19, 1994, at Johnson Space Center to provide
Cross, John H.
core   +1 more source

Assessment of Variable Traveling Wave Profiles for Small-Molecule Applications in Ion Mobility Spectrometry-Mass Spectrometry (IMS-MS)

Journal of the American Society for Mass Spectrometry
The MOBILion MOBIE system is a relatively new platform offering high ion mobility spectrometry (IMS) resolving power and resolution. While these advancements present encouraging opportunities for isomer separations and improved molecular annotation, previous studies have noted that collision cross section (CCS) values collected on the MOBIE and other ...
James N. Dodds, Amie M. Solosky, Sadie M. Disselkoen, Kara M. Joseph, Erin S. Baker   +4 more
openaire   +2 more sources

Thermal decomposition and atmospheric pressure chemical ionization of alanine using ion mobility spectrometry and computational study

Heliyon
This study investigates the impact of thermal decomposition on the ion mobility spectrum of L-alanine using ion mobility spectrometry (IMS) and computational methods.
Manijeh Tozihi, Hamed Bahrami, Masoumeh Garmabdashti   +2 more
doaj   +1 more source

Geographical authentication of saffron by chemometrics applied to the ion mobility spectrometry data

Food Chemistry: X
There is a lack of a reliable tool for quickly determining the geographical origins of saffron (SFR). Ion mobility spectrometry (IMS) has emerged as a promising method for rapid authentication.
Nayereh Shamshiri, Reza Fattahi, Ahmad Mani-Varnosfaderani, Mohsen Barzegar, Mohammad Ali Sahari   +4 more
doaj   +1 more source