Results 1 to 10 of about 5,630 (192)

Ion mobility spectrometry–mass spectrometry (IMS–MS) for on- and offline analysis of atmospheric gas and aerosol species [PDF]

Atmospheric Measurement Techniques, 2016
Measurement techniques that provide molecular-level information are needed to elucidate the multiphase processes that produce secondary organic aerosol (SOA) species in the atmosphere. Here we demonstrate the application of ion mobility spectrometry-mass
J. E. Krechmer, M. Groessl, X. Zhang, H. Junninen, P. Massoli, A. T. Lambe, J. R. Kimmel, M. J. Cubison, S. Graf, Y.-H. Lin, S. H. Budisulistiorini, H. Zhang, J. D. Surratt, R. Knochenmuss, J. T. Jayne, D. R. Worsnop, J.-L. Jimenez, M. R. Canagaratna   +17 more
doaj   +6 more sources

Unraveling the thermal decomposition and chemical ionization of methionine using ion mobility spectrometry and computational chemistry [PDF]

Scientific Reports
Methionine, an essential amino acid, plays a crucial role in various biological processes and exhibits antioxidant properties, significantly impacting the health and well-being of humans, livestock, poultry, and fisheries.
Mina Amiri, Morteza Vahedpour, Hamed Bahrami, Hamed Douroudgari   +3 more
doaj   +2 more sources

Perspective on Developments in Ion Mobility Spectrometry-Mass Spectrometry Combined with Ion Spectroscopy [PDF]

Zhipu Xuebao, 2022
Combined with mass spectrometry, ion spectroscopy can obtain a spectrum of the target ion by measuring its intensity change, which is induced by laser strength and wavelength.
WANG Na1, SU Wen1, ZHANG Di2, JIANG You2, FANG Xiang2, YUE Lei1   +5 more
doaj   +1 more source

New Development in Ion Mobility Spectrometry for Analysis of Small Molecule Isomers [PDF]

Zhipu Xuebao, 2022
With the rapid development of modern detection technology and scientific research, the chemical structures and functions of isomers are constantly being revealed.
WU Fang-ling1, ZHANG Di2, XU Fu-xing1, FANG Xiang2, DING Chuan-fan1   +4 more
doaj   +1 more source

Hadamard Transform Ion Mobility Spectrometry Based on Matrix Encoding Modulation

Sensors, 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

Ion Mobility–Mass Spectrometry for Bioanalysis

Separations, 2021
This paper aims to cover the main strategies based on ion mobility spectrometry (IMS) for the analysis of biological samples. The determination of endogenous and exogenous compounds in such samples is important for the understanding of the health status ...
Xavier Garcia, Maria del Mar Sabaté, Jorge Aubets, Josep Maria Jansat, Sonia Sentellas   +4 more
doaj   +1 more source

Integrating the potential of ion mobility spectrometry-mass spectrometry in the separation and structural characterisation of lipid isomers

Frontiers in Molecular Biosciences, 2023
It is increasingly evident that a more detailed molecular structure analysis of isomeric lipids is critical to better understand their roles in biological processes.
Sandra M. Camunas-Alberca, Maria Moran-Garrido, Jorge Sáiz, Alberto Gil-de-la-Fuente, Alberto Gil-de-la-Fuente, Coral Barbas, Ana Gradillas   +6 more
doaj   +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

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