Results 291 to 300 of about 277,596 (351)

Hadamard Transform Ion Mobility Spectrometry

Analytical Chemistry, 2005
Traditionally, the spectrum acquired using ion mobility spectrometry (IMS) is an average of multiple experimental cycles. Each cycle is initiated by passing a short burst of ions into a drift tube containing a homogeneous electric field. Prior to starting the subsequent cycle, all ions in the system must arrive at the detector or spectral overlap may ...
Brian H, Clowers, William F, Siems, Herbert H, Hill, Steven M, Massick   +3 more
openaire   +2 more sources

Effective Temperature and Structural Rearrangement in Trapped Ion Mobility Spectrometry.

Analytical Chemistry, 2020
Modern ion mobility instrumentations are typically operated above the low field limit, which may activate the ions and cause structural rearrangement or fragmentation during the analysis.
Denis Morsa, E. Hanozin, G. Eppe, L. Quinton, V. Gabélica, E. Pauw   +5 more
semanticscholar   +1 more source

Voltage Sweep Ion Mobility Spectrometry

Analytical Chemistry, 2011
Ion mobility spectrometry (IMS) is a rapid, gas-phase separation technique that exhibits excellent separation of ions as a standalone instrument. However, IMS cannot achieve optimal separation power with both small and large ions simultaneously. Similar to the general elution problem in chromatography, fast ions are well resolved using a low electric ...
Eric J, Davis, Michael D, Williams, William F, Siems, Herbert H, Hill   +3 more
openaire   +2 more sources

Surface Ionization Ion Mobility Spectrometry

Analytical Chemistry, 1998
A surface ionization (SI) source was designed and constructed for ion mobility spectrometry (IMS). Compared with a conventional (63)Ni source, the surface ionization source is as simple and reliable, has an extended dynamic response range, is more selective in response, and does not have regulatory problems associated with radioactive ionization ...
C, Wu, H H, Hill, U K, Rasulev, E G, Nazarov   +3 more
openaire   +2 more sources

IR-MALDI ion mobility spectrometry

Analytical and Bioanalytical Chemistry, 2016
The novel combination of infrared matrix-assisted laser dispersion and ionization (IR-MALDI) with ion mobility (IM) spectrometry makes it possible to investigate biomolecules in their natural environment, liquid water. As an alternative to an ESI source, the IR-MALDI source was implemented in an in-house-developed ion mobility (IM) spectrometer.
José Villatoro, Martin Zühlke, Daniel Riebe, Jens Riedel, Toralf Beitz, Hans-Gerd Löhmannsröben   +5 more
openaire   +2 more sources

Liquid phase ion mobility spectrometry

The Analyst, 2011
A novel analytical method, called Liquid Phase Ion Mobility Spectrometry (LiPIMS) was demonstrated, where aqueous phase analytes were ionized and introduced into non-aqueous liquids, transported by an external electric field from the point of generation to a collection electrode.
Maggie, Tam, Herbert H, Hill
openaire   +2 more sources

Fourier Transform Ion Mobility Spectrometry

Analytical Chemistry, 1985
Theorie du fonctionnement d'un spectrometre a deux portes.
F J, Knorr, R L, Eatherton, W F, Siems, H H, Hill   +3 more
openaire   +2 more sources

Effective Liquid Chromatography-Trapped Ion Mobility Spectrometry-Mass Spectrometry Separation of Isomeric Lipid Species.

Analytical Chemistry, 2019
Lipids are a major class of molecules that play key roles in different biological processes. Understanding their biological roles and mechanisms remains analytically challenging due to their high isomeric content (e.g., varying acyl chain positions and ...
K. Jeanne Dit Fouque, Cesar E. Ramirez, Russell L Lewis, J. Koelmel, T. Garrett, R. Yost, F. Fernandez-Lima   +6 more
semanticscholar   +1 more source

Tandem trapped ion mobility spectrometry

The Analyst, 2018
Design, characteristics, and application of tandem trapped ion mobility spectrometry (TIMS-TIMS).
Fanny C. Liu, Mark E. Ridgeway, Melvin A. Park, Christian Bleiholder   +3 more
openaire   +2 more sources

Ion Mobility Spectrometry

2004
Ion mobility spectrometry was developed for the simple and cheap detection and characterization of organic compounds (Cohen and Karasek, 1970; Karasek, 1970; Caroll et al., 1971; Caroll, 1972; Cohen et al., 1972; Cohen and Crowe, 1973; Vora et al., 1987; St. Louis and Hill, 1990; Campbell et al., 1991; Burke, 1992; Eiceman and Karas, 1994; Taylor, 1996;
openaire   +2 more sources