Results 201 to 210 of about 20,265 (247)
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Forensic Science International, 2008
The validation of a qualitative ion mobility spectrometry (IMS) procedure for the detection of trace amounts of heroin and cocaine on incriminated material using a vacuum cleaner for sampling is presented. The limit of detection, the limit of decision, selectivity and robustness were determined.
Franz E, Dussy +5 more
exaly +4 more sources
The validation of a qualitative ion mobility spectrometry (IMS) procedure for the detection of trace amounts of heroin and cocaine on incriminated material using a vacuum cleaner for sampling is presented. The limit of detection, the limit of decision, selectivity and robustness were determined.
Franz E, Dussy +5 more
exaly +4 more sources
Analytical Chemistry, 2015
A prototype is introduced based on the transversal modulation ion mobility spectrometry (TMIMS) technique, which provides a continuous output of mobility-selected ions, greatly easing the synchronization between different analyzing stages. In the new architecture, two stages of filtration are used to drastically reduce the background produced by one ...
G, Vidal-de-Miguel +3 more
openaire +3 more sources
A prototype is introduced based on the transversal modulation ion mobility spectrometry (TMIMS) technique, which provides a continuous output of mobility-selected ions, greatly easing the synchronization between different analyzing stages. In the new architecture, two stages of filtration are used to drastically reduce the background produced by one ...
G, Vidal-de-Miguel +3 more
openaire +3 more sources
Analysis of explosives using electrospray ionization/ion mobility spectrometry (ESI/IMS)
Talanta, 2000The analysis of explosives with ion mobility spectrometry (IMS) directly from aqueous solutions was shown for the first time using an electrospray ionization technique. The IMS was operated in the negative mode at 250 degrees C and coupled with a quadrupole mass spectrometer to identify the observed IMS peaks.
Herbert Hill
exaly +3 more sources
An ion mobility spectrometry/mass spectrometry (IMS/MS) study of the site of protonation in anilines
Structural Chemistry, 1990Ion mobility spectrometry (IMS) and IMS/MS techniques were used to differentiate between nitrogenprotonated and carbon-protonated anilines, both of which coexist under the conditions of the IMS. Analysis of the results led to the conclusion that the former species had lower mobilities than the latter. This was attributed mainly to charge delocalization
Zeev Karpas +2 more
openaire +2 more sources
Journal of the American Society for Mass Spectrometry, 2021
Classical ion mobility spectrometers (IMS) operated at ambient pressure, often use atmospheric pressure chemical ionization (APCI) sources to ionize organic compounds. In APCI, reactant ions ionize neutral analyte molecules via gas-phase ion–molecule reactions. The positively charged reactant ions in purified, dry air are H3O+, NO+, and O2+•.
Ansgar T Kirk +2 more
exaly +3 more sources
Classical ion mobility spectrometers (IMS) operated at ambient pressure, often use atmospheric pressure chemical ionization (APCI) sources to ionize organic compounds. In APCI, reactant ions ionize neutral analyte molecules via gas-phase ion–molecule reactions. The positively charged reactant ions in purified, dry air are H3O+, NO+, and O2+•.
Ansgar T Kirk +2 more
exaly +3 more sources
Journal of the American Society for Mass Spectrometry, 2020
In contrast to classical ion mobility spectrometers (IMS) operating at ambient pressure, the high kinetic energy ion mobility spectrometer (HiKE-IMS) is operated at reduced pressures between 10-40 mbar. In HiKE-IMS, ions are generated in a reaction region before they are separated in a drift region.
Maria Allers +7 more
openaire +3 more sources
In contrast to classical ion mobility spectrometers (IMS) operating at ambient pressure, the high kinetic energy ion mobility spectrometer (HiKE-IMS) is operated at reduced pressures between 10-40 mbar. In HiKE-IMS, ions are generated in a reaction region before they are separated in a drift region.
Maria Allers +7 more
openaire +3 more sources
Use of Neural Networks for Quantitative Measurements in Ion Mobility Spectrometry (IMS)
Journal of Chemical Information and Computer Sciences, 1994Zvi Boger, Zeev Karpas
openaire +2 more sources
Critical reviews in food science and nutrition, 2021
Ion mobility spectrometry (IMS) is an analytical separation and diagnostic technique that is simple and sensitive and a rapid response and low-priced technique for detecting trace levels of chemical compounds in different matrices.
Mahsa Alikord +3 more
semanticscholar +1 more source
Ion mobility spectrometry (IMS) is an analytical separation and diagnostic technique that is simple and sensitive and a rapid response and low-priced technique for detecting trace levels of chemical compounds in different matrices.
Mahsa Alikord +3 more
semanticscholar +1 more source
Ion Mobility Spectrometry (IMS) and Mass Spectrometry (MS)
2010A. Shvartsburg
openaire +2 more sources
Meat Science, 2021
In this study, gas chromatography coupled to an ion mobility spectrometry (GC-IMS) was used for analyzing some volatile components and flavor fingerprint in samples from Jingyuan lambs of different ages (2, 6, and 12 months).
F. Wang +6 more
exaly +2 more sources
In this study, gas chromatography coupled to an ion mobility spectrometry (GC-IMS) was used for analyzing some volatile components and flavor fingerprint in samples from Jingyuan lambs of different ages (2, 6, and 12 months).
F. Wang +6 more
exaly +2 more sources