International Journal for Ion Mobility Spectrometry

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Evaluating the variation of ion energy under different parameter settings in traveling wave ion mobility mass spectrometry
International Journal for Ion Mobility Spectrometry - Tập 21 - Trang 81-86 - 2018
Joseph N. Mwangi, Daniel A. Todd, Norman H. L. Chiu
Ion mobility mass spectrometry (IM-MS) can be used to differentiate and identify isobaric ions. To improve IM-MS resolution, the second generation of traveling wave ion mobility (TWIM) technology was launched. There were reports showing ions were heated up by TWIM. With higher ion energy, it could alter the conformation of larger ions or MS/MS experiments. To monitor the energy exchange relating t...... hiện toàn bộ
MCC/IMS as potential noninvasive technique in the diagnosis of patients with COPD with and without alpha 1-antitrypsin deficiency
International Journal for Ion Mobility Spectrometry - Tập 14 - Trang 177-185 - 2011
Rembert Koczulla, Akira Hattesohl, Severin Schmid, Bertram Bödeker, Sasidhar Maddula, Jörg Ingo Baumbach
A versatile and compact reference gas generator for calibration of ion mobility spectrometers
International Journal for Ion Mobility Spectrometry - Tập 23 Số 2 - Trang 51-60 - 2020
Thomas Mayer, Malcolm Cämmerer, Helko Borsdorf
Molecular modeling interpretation of IMMS data collected on negative ionization of methyl salicylate using radioactive, corona discharge and photo-ionization
International Journal for Ion Mobility Spectrometry - - 2015
Glenn E. Spangler
Structure-drift time relationships in ion mobility mass spectrometry
International Journal for Ion Mobility Spectrometry - - 2013
Maíra Fasciotti, Priscila M. Lalli, Gabriel Heerdt, Rafael Augusto Steffen, Yuri Corilo, Gilberto F. de Sá, Romeu J. Daroda, Francisco de A.M. Reis, Nelson H. Morgon, Roberto Pereira, Marcos N. Eberlin, Clécio F. Klitzke
Differential mobility spectrometer: optimization of the analytical characteristics
International Journal for Ion Mobility Spectrometry - Tập 15 - Trang 85-90 - 2012
Evgeny Krylov
Differential mobility spectrometer is a powerful tool used for detection, filtration and characterization of ions in gas-phase. DMS instrumentation analytical performance is a matter of importance for practical application. This paper is devoted to the improving of the planar DMS analytical characteristics. The goal is to optimize ion transmission and separation efficiency for the best possible DM...... hiện toàn bộ
Ion mobility spectrometry of solid surfaces for pharmaceutical residues using electrospray laser desorption and ionization
International Journal for Ion Mobility Spectrometry - Tập 18 - Trang 87-93 - 2015
Cheng-Hui Yuan, Hermann Wollnik, Pu Wei, Gary A. Eiceman, Jentaie Shiea
Pharmaceutical residues on solid surfaces were determined in air at ambient pressure using ion mobility spectrometry (IMS) with electrospray ionization laser desorption (ELDI) methods. Substances were desorbed from surfaces with a pulsed Nd-YAG laser at 266 nm and ionized in an electrospray ion source. Ions derived from substances by ELDI were measured using ion mobility spectrometry. Substances w...... hiện toàn bộ
Monte Carlo simulation of ion transport in non-linear ion mobility spectrometry
International Journal for Ion Mobility Spectrometry - Tập 12 - Trang 149-156 - 2009
Jun Xu, Yuan Liu
A program for Monte Carlo simulation of ion transport in non-linear ion mobility spectrometry, also known as field asymmetric ion mobility spectrometry (FAIMS) or differential mobility spectrometry (DMS), has been developed. Simulations are based on elastic collisions between the ions and the gas particles, and take into account the effects of flow dynamics and asymmetric electric fields. Using th...... hiện toàn bộ
The effects of cation adduction upon the conformation of three-helix bundle protein domains
International Journal for Ion Mobility Spectrometry - Tập 16 - Trang 19-27 - 2012
Kleitos Sokratous, Robert Layfield, Neil J. Oldham
The ubiquitin-binding, three-helix bundle domains of the proteins ubiquilin 1 (UQ1) and hHR23A both exhibited remarkably high, but discrete, ammonium ion adduction when electrosprayed from aqueous ammonium acetate. The degree of adduction was highly charge state dependent with, unusually, the lowest charge states (+3 for UQ1 and +4 for hHR23A) showing almost no adducts and the highest charge state...... hiện toàn bộ
Ion mobility spectrometry of laser desorbed pesticides from fruit surfaces
International Journal for Ion Mobility Spectrometry - Tập 15 - Trang 55-62 - 2012
Christian Weickhardt, Norbert Kaiser, Helko Borsdorf
The applicability of a technique combining laser desorption and ion mobility spectrometry for rapid detection of pesticides on fruit surfaces is explored. A selection of 20 fungicides, herbicides and insecticides with very different chemical and spectroscopic characteristics was used to study its features. For a variety of fruits the maximum tolerable laser irradiance was determined, at which no s...... hiện toàn bộ
Tổng số: 168   
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