Results 21 to 30 of about 5,630 (192)

Rapid Characterization of Per- and Polyfluoroalkyl Substances (PFAS) by Ion Mobility Spectrometry–Mass Spectrometry (IMS-MS) [PDF]

open access: yesAnalytical Chemistry, 2020
Per- and polyfluoroalkyl substances (PFAS) are an ensemble of persistent organic pollutants of global interest because of their associations with adverse health outcomes. Currently, environmental PFAS pollution is prolific as a result of the widespread manufacturing of these compounds and their chemical persistence.
James N. Dodds   +3 more
openaire   +2 more sources

Hunting for Toxic Industrial Chemicals: Real-Time Detection of Carbon Disulfide Traces by Means of Ion Mobility Spectrometry

open access: yesToxics, 2020
Sensitive real-time detection of vapors produced by toxic industrial chemicals (TICs) represents a stringent priority nowadays. Carbon disulfide (CS2) is such a chemical, being widely used in manufacturing synthetic textile fibers and as a solvent.
Victor Bocos-Bintintan   +1 more
doaj   +1 more source

Non-Targeted Screening Approaches for Profiling of Volatile Organic Compounds Based on Gas Chromatography-Ion Mobility Spectroscopy (GC-IMS) and Machine Learning

open access: yesMolecules, 2021
Due to its high sensitivity and resolving power, gas chromatography-ion mobility spectrometry (GC-IMS) is a powerful technique for the separation and sensitive detection of volatile organic compounds.
Charlotte Capitain, Philipp Weller
doaj   +1 more source

Analysis of nine nitrosamines relevant to occupational safety by ion mobility spectroscopy and preliminary gas chromatographic separation

open access: yesJournal of Chromatography Open, 2023
Nitrosamines have been identified as a probable human carcinogen and thus are of high concern in many manufacturing industries and various matrices (for example pharmaceutical, cosmetic and food products, workplace air or potable- and wastewater).
Jana Hinz   +6 more
doaj   +1 more source

Hyphenated differential mobility spectrometry for rapid separation and detection

open access: yesReviews in Analytical Chemistry, 2016
This paper reviews hyphenated differential mobility spectrometry (DMS) technology. DMS is a type of ion mobility spectrometry (IMS) also called high-field asymmetric waveform IMS. It is widely used in the detection of chemical warfare agents, explosives,
Yang Liu   +5 more
doaj   +1 more source

EM∩IM: software for relating ion mobility mass spectrometry and electron microscopy data [PDF]

open access: yesThe Analyst, 2016
EM∩IM enables the calculation of collision cross-sections from electron density maps obtained, for example, by means of transmission electron microscopy. This capability will further aid the integration of ion mobility mass spectrometry with modern structural biology.
Degiacomi, M, Benesch, J
openaire   +5 more sources

Implementation of a flexible, open-source platform for ion mobility spectrometry

open access: yesHardwareX, 2018
When operated as a stand-alone device, an ion mobility spectrometer (IMS) routinely offers low limits of detection (pptv-range) for gas-phase analytes even for measurement times less than a second.
Tobias Reinecke, Brian H. Clowers
doaj   +1 more source

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

open access: yesData 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   +4 more
doaj   +1 more source

Comparative Study of E-Nose, GC-MS, and GC-IMS to Distinguish Star Anise Essential Oil Extracted Using Different Extraction Methods

open access: yesSeparations, 2023
In this study, star anise (Illicium verum) essential oils (SAEOs) were extracted by hydrodistillation (HD), ethanol solvent extraction (ESE), supercritical CO2 (SCD) and subcritical extraction (SE) via electronic nose (E-nose), gas chromatography-mass ...
Xianghua Chai   +6 more
doaj   +1 more source

Characterization of Amyloid Oligomers by Electrospray Ionization-Ion Mobility Spectrometry-Mass Spectrometry (ESI-IMS-MS) [PDF]

open access: yes, 2016
Soluble oligomers formed during the self-assembly of amyloidogenic peptide and protein species are generally thought to be highly toxic. Consequently, thorough characterization of these species is of much interest in the quest for effective therapeutics and for an enhanced understanding of amyloid fibrillation pathways.
Scarff, CA, Ashcroft, AE, Radford, SE
openaire   +4 more sources

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