High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS) at 40 mbar [PDF]
Journal of the American Society for Mass Spectrometry, 2020 High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) are usually operated at an absolute pressure of 20 mbar reaching high reduced electric field strengths of up to 125 Td for controlled reaction kinetics. This significantly increases the linear range and limits chemical cross sensitivities.
Florian Schlottmann +4 more
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Formation of positive product ions from substances with low proton affinity in high kinetic energy ion mobility spectrometry [PDF]
Rapid Communications in Mass Spectrometry, 2021 Rationale Ion mobility spectrometry (IMS) instruments are typically equipped with atmospheric pressure chemical ionization (APCI) sources operated at ambient pressure. However, classical APCI‐IMS suffers from a limited ionization yield for nonpolar substances with low proton affinity (PA).
Maria Allers +4 more
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High kinetic energy-ion mobility spectrometry-mass spectrometry investigations of several volatiles and their fully deuterated analogues [PDF]
The European Physical Journal D, 2022 AbstractThe first High Kinetic Energy-Ion Mobility Spectrometry-Mass Spectrometry (HiKE-IMS-MS) studies involving six volatiles (acetone, acetonitrile, methanol, ethanol, 2-propanol, and 1-butanol) and their fully deuterated analogues are reported. The goal is to further our understanding of the ion–molecule chemistry occurring in the HiKE-IMS. This is
Weiss, Florentin +6 more
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Quantitative Detection of Benzene in Toluene- and Xylene-Rich Atmospheres Using High-Kinetic-Energy Ion Mobility Spectrometry (IMS) [PDF]
Analytical Chemistry, 2014 One major drawback of ion mobility spectrometry (IMS) is the dependence of the response to a certain analyte on the concentration of water or the presence of other compounds in the sample gas. Especially for low proton affine analytes, e.g., benzene, which often exists in mixtures with other volatile organic compounds, such as toluene and xylene (BTX),
Jens, Langejuergen +4 more
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Stockage chimique de l'énergie solaire : mesure des énergies d'activation par mobilité ionique et spectrométrie de masse [PDF]
, 2023 peer reviewedTo meet the challenge of the ever-increasing energy consumption producing greenhouse gases and other atmospheric pollutants, the development of solar energy solutions has been widely investigated over the past decades.
De winter, Julien +6 more
core +1 more source
Electronic spectroscopy of cold ions in a radio-frequency trap [PDF]
, 2010 The low density of ions in mass spectrometers generally precludes direct absorption measurements. The spectrum of ions can nonetheless be obtained by using resonance two-color photofragmentation or multiphoton photofragmentation techniques.
Rudnev, Vitaly S.
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GAS-PHASE ION CHEMISTRY VERSUS SOLUTION CHEMISTRY [PDF]
, 1992 The basic requirements for a correct comparison between kinetic and mechanistic data concerning ionic processes in the gaseous phase and in solution are presented.
SPERANZA, Maurizio
core +1 more source
Predicting ion mobility as a function of the electric field for small ions in light gases [PDF]
, 2021 High resolution mobility devices such as Field Asymmetric Waveform Ion Mobility Spectrometry (FAIMS) and Differential Mobility spectrometers (DMS) use strong electric fields to gas concentration ratios, E/N, to separate ions in the gas phase.
Larriba-Andaluz, Carlos +1 more
core +1 more source
Validation of Field-Dependent Ion–Solvent Cluster Modeling via Direct Measurement of Cluster Size Distributions [PDF]
, 2023 Ion mobility spectrometry is widely used in analytical chemistry, either as a stand-alone technique or coupled to mass spectrometry. Ions in the gas phase tend to form loosely bound clusters with surrounding solvent vapors, artificially increasing the ...
Alexander Haack (4257604) +3 more
core +3 more sources
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source