Results 21 to 30 of about 157,015 (313)

Effect of Precise Control of Drift Gas Composition for a U-shaped Mobility Analyzer [PDF]

open access: yesZhipu Xuebao, 2022
Ion mobility coupling with mass spectrometer has become an important tool for analysis of complex mixtures. Generally, the type and composition of drift gas (e.g., N2, He, CO2) in an ion mobility spectrometer will impact on the separation of different ...
TSENG Kuo-feng   +3 more
doaj   +1 more source

Plasma Metabolomic Profiling Reveals Four Possibly Disrupted Mechanisms in Systemic Sclerosis

open access: yesBiomedicines, 2022
Systemic sclerosis (SSc) is a rare systemic autoimmune disorder marked by high morbidity and increased risk of mortality. Our study aimed to analyze metabolomic profiles of plasma from SSc patients by using targeted and untargeted metabolomics approaches.
Thomas Bögl   +5 more
doaj   +1 more source

Ion mobility mass spectrometry of saponin ions [PDF]

open access: yesRapid Communications in Mass Spectrometry, 2018
Rationale Saponins are natural compounds presenting a high structural diversity whose structural characterization remains extremely challenging. Ideally, saponin structures are best established using nuclear magnetic resonance experiments conducted on isolated molecules.
Corentin Decroo   +8 more
openaire   +3 more sources

Fragmentation and Mobility Separation of Peptide and Protein Ions in a Trapped-Ion Mobility Device [PDF]

open access: yesAnalytical Chemistry, 2021
Ion mobility separations (IMS) have increasingly been coupled with mass spectrometry to increase peak capacity and deconvolute complex mass spectra in proteomics workflows. IMS separations can be integrated prior to or following the collisional activation step.
Nicholas B. Borotto, Katherine A. Graham
openaire   +2 more sources

Resistance of Ion Exchange Membranes in Aqueous Mixtures of Monovalent and Divalent Ions and the Effect on Reverse Electrodialysis

open access: yesMembranes, 2023
Salinity gradient energy has gained attention in recent years as a renewable energy source, especially employing reverse electrodialysis technology (RED), which is based on the role of ion exchange membranes.
Joost Veerman   +3 more
doaj   +1 more source

Ion mobility in crystalline battery materials

open access: yes, 2023
Ion mobility in electrolytes and electrodes is an important performance parameter in electrochemical devices, particularly in batteries. In this review, we concentrate on the charge carrier mobility in crystalline battery materials where the diffusion ...
Katrin, Forster-Tonigold   +7 more
core   +1 more source

Ion dynamics in a trapped ion mobility spectrometer [PDF]

open access: yesThe Analyst, 2014
In the present paper, theoretical simulations and experimental observations are used to describe the ion dynamics in a trapped ion mobility spectrometer.
Diana Rosa, Hernandez   +5 more
openaire   +2 more sources

Flexible organic ion-gated transistors with low operating voltage and light-sensing application

open access: yesJPhys Materials, 2021
Ion-gated transistors are attracting significant attention due to their low operating voltage (
Mona Azimi   +3 more
doaj   +1 more source

Food Monitoring: Limitations of Accelerated Storage to Predict Molecular Changes in Hazelnuts (Corylus avellana L.) under Realistic Conditions Using UPLC-ESI-IM-QTOF-MS

open access: yesMetabolites, 2023
Accelerated storage is routinely used with pharmaceuticals to predict stability and degradation patterns over time. The aim of this is to assess the shelf life and quality under harsher conditions, providing crucial insights into their long-term ...
Henri Loesel   +8 more
doaj   +1 more source

A high transmission axial ion mobility classifier for mass-mobility measurements of atmospheric ions [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
Abstract. We present an electrical mobility classifier for mass-mobility measurements of atmospheric ions. Size segregation coupled with mass spectrometric detection of naturally occurring ions in the atmosphere is challenging due to the low ion concentration.
M. Leiminger   +10 more
openaire   +3 more sources

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