Results 261 to 270 of about 2,450,645 (310)

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, these
Kyle E, Lira, Jody C, May, John A, McLean   +2 more
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Ion Mobility Spectrometry of Heavy Metals

Analytical Chemistry, 2016
A simple, fast, and inexpensive method was developed for detecting heavy metals via the ion mobility spectrometry (IMS) in the negative mode. In this method, Cl(-) ion produced by the thermal ionization of NaCl is employed as the dopant or the ionizing reagent to ionize heavy metals.
Vahideh, Ilbeigi, Younes, Valadbeigi, Mahmoud, Tabrizchi   +2 more
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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;
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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
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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
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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
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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
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Ion Mobility-Mass Spectrometry of Glycoconjugates

2019
Glycoconjugates are diverse biomolecules that are dynamically assembled to regulate and fine-tune numerous cellular processes. Their biosynthesis is nontemplate-driven, achieved stepwise in discrete locations within the cell, giving rise to a range of complex branched structures that pose a significant challenge in structural biology. Mass spectrometry
Weston B, Struwe, David J, Harvey
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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
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Hadamard Transform Ion Mobility Spectrometry

Analytical Chemistry, 2006
A detection scheme that makes use of the Hadamard transform has been employed with an atmospheric-pressure ion mobility spectrometer fitted with an electrospray ionization source. The Hadamard transform was implemented through the use of a linear-feedback shift register to produce a pseudorandom sequence of 1023 points.
Andrew W, Szumlas, Steven J, Ray, Gary M, Hieftje   +2 more
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