Results 261 to 270 of about 2,056,696 (309)
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On an Anomaly in the Mobility of Gaseous Ions
Bell System Technical Journal, 1970Many mobility versus field curves for gaseous ions show a high mobility “bump” just above the ohmic range. The effect arises from the nature of the force between ions and molecules. It is effectively attractive for low speeds of encounter and repulsive for high speeds.
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Inverse Ion Mobility Spectrometry
Analytical Chemistry, 2009A novel method is proposed for enhancing the separation power of ion mobility spectrometry (IMS) and other similar pulsed techniques, such as time-of-flight mass spectrometry. In this technique, rather than generating an ion packet, a dip is created in the ion beam. This is achieved by an inverse pulse applied to the shutter grid.
Mahmoud, Tabrizchi, Elham, Jazan
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Ion mobility spectrometry and ion mobility-mass spectrometry in clinical chemistry
Advancements in clinical chemistry have major implications in terms of public health, prompting many clinicians to seek out chemical information to aid in diagnoses and treatments. While mass spectrometry (MS) and hyphenated-MS techniques such as LC-MS or tandem MS/MS have long been the analytical methods of choice for many clinical applications, theseKyle E, Lira +2 more
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Ion Mobility-Mass Spectrometer Interface for Collisional Activation of Mobility Separated Ions
Analytical Chemistry, 2008An ion mobility-mass spectrometer (IM-MS) interface is described that can be employed to perform collisional activation and/or collision-induced dissociation (CID) with good transmission of mobility separated ions to the MS analyzer. The IM-MS interface consists of a stacked-ring ion guide design, where the field strength and pressure ratio can be ...
Francisco A, Fernandez-Lima +5 more
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Biological Mass Spectrometry, 1988
Positive and negative ion mobility spectra of dimenhydrinate are presented, and the calculated reduced mobility (K0) values for the most significant peaks are reported. Mass identification of the ionic species associated with the peaks in the ion mobility spectra was achieved by interfacing the ion mobility spectrometer to a mass spectrometer.
A H, Lawrence, A A, Nanji
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Positive and negative ion mobility spectra of dimenhydrinate are presented, and the calculated reduced mobility (K0) values for the most significant peaks are reported. Mass identification of the ionic species associated with the peaks in the ion mobility spectra was achieved by interfacing the ion mobility spectrometer to a mass spectrometer.
A H, Lawrence, A A, Nanji
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Trapped Ion Mobility Spectrometry and Parallel Accumulation–Serial Fragmentation in Proteomics
Molecular and Cellular Proteomics, 2021Matthias Mann, Florian Meier
exaly
Ion mobility spectrometer and method for analyzing samples by ion mobility spectrometry
2021ZIMMERMANN STEFAN +4 more
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Ion Mobility Spectrometry: Principles and Applications
Applied Spectroscopy Reviews, 2006Helko Borsdorf, Gary Eiceman
exaly