Results 81 to 90 of about 277,596 (351)

External Second Gate, Fourier Transform Ion Mobility Spectrometry: Parametric Optimization for Detection of Weapons of Mass Destruction

Sensors, 2004
: Ion mobility spectrometry (IMS) is recognized as one of the most sensitive and robust techniques for the detection of narcotics, explosives and chemical warfare agents. IMS is widely used in forensic, military and security applications.
Edward E. Tarver
doaj   +1 more source

Evaporation and Discharge Dynamics of Highly Charged Multicomponent Droplets Generated by Electrospray Ionization [PDF]

, 2010
We investigate the Rayleigh discharge and evaporation dynamics of highly charged two-component droplets consisting principally of methanol with 2-methoxyethanol, tert-butanol, or m-nitrobenzyl alcohol.
Beauchamp, J. L., Grimm, Ronald L.
core   +1 more source

Characterization of Volatile Component Changes in Jujube Fruits during Cold Storage by Using Headspace-Gas Chromatography-Ion Mobility Spectrometry

Molecules, 2019
Volatile components in jujube fruits from Zizyphus jujuba Mill. cv. Dongzao (DZ) and Zizyphus jujuba Mill. cv. Jinsixiaozao (JS) were analyzed under different cold storage periods via headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS ...
Lvzhu Yang, Jie Liu, Xinyu Wang, Rongrong Wang, Fang Ren, Qun Zhang, Yang Shan, Shenghua Ding   +7 more
semanticscholar   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

OC-163 identification of inflammatory bowel disease (IBD) using field asymmetric ion mobility spectrometry (FAIMS) [PDF]

, 2012
Introduction Resident colonic bacteria, principally anaerobes and firmicutes, ferment undigested fibre. The resultant volatile organic compounds (VOCs) formed are dissolved in the faeces but also absorbed and excreted in the urine.
Arasaradnam, Ramesh P., Bardhan, Karna Dev, Covington, James A., Hetherington, E., Nwokolo, Chuka U., Ouaret, N., Quraishi, M. N., Thomas, M. G.   +7 more
core   +1 more source

Comment on Effective Temperature and Structural Rearrangement in Trapped Ion Mobility Spectrometry: TIMS Enables Native Mass Spectrometry Applications.

Analytical Chemistry, 2020
Ion mobility spectrometry/mass spectrometry as a structural tool in biochemistry relies on the notion that native solution structures are metastable within the measurement timescale.
C. Bleiholder, Fanny C. Liu, M. Chai
semanticscholar   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Assignment of polymorphic species of insulin analogues in ion mobility mass spectroscopy

Data in Brief, 2017
Electrospray ionization – ion mobility spectrometry – mass spectrometry (ESI–IMS–MS) allows the identification of protein polymorphic distribution of protein conformers and oligomers.
Maely P. Fávero-Retto, Luiz Henrique Guerreiro, Cássio M. Pessanha, Leonardo C. Palmieri, Luís Maurício T.R. Lima   +4 more
doaj   +1 more source

On-tissue dataset-dependent MALDI-TIMS-MS2 bioimaging

Nature Communications, 2023
Trapped ion mobility spectrometry (TIMS) adds an additional separation dimension to mass spectrometry (MS) imaging, however, the lack of fragmentation spectra (MS2) impedes confident compound annotation in spatial metabolomics.
Steffen Heuckeroth, Arne Behrens, Carina Wolf, Arne Fütterer, Ilona D. Nordhorn, Katharina Kronenberg, Corinna Brungs, Ansgar Korf, Henning Richter, Astrid Jeibmann, Uwe Karst, Robin Schmid   +11 more
doaj   +1 more source

Stationary Explosive Trace Detection System Using Differential Ion Mobility Spectrometry (DMS)

Sensors, 2023
Detecting trace amounts of explosives is important for maintaining national security due to the growing threat of terror attacks. Particularly challenging is the increasing use of homemade explosives.
Monika Szyposzyńska, Aleksandra Spławska, Michał Ceremuga, Piotr Kot, Mirosław Maziejuk   +4 more
doaj   +1 more source