Experimental ion mobility measurements in Ar-N2
نویسندگان
چکیده
منابع مشابه
Gas molecule scattering & ion mobility measurements for organic macro-ions in He versus N2 environments.
A pending issue in linking ion mobility measurements to ion structures is that the collisional cross section (CCS, the measured structural parameter in ion mobility spectrometry) of an ion is strongly dependent upon the manner in which gas molecules effectively impinge on and are reemitted from ion surfaces (when modeling ions as fixed structures). To directly examine the gas molecule impingeme...
متن کاملHigh-resolution ion mobility measurements
Gas phase ion mobility measurements can resolve structural isomers for polyatomic ions and provide information about their geometries. A new experimental apparatus for performing high-resolution ion mobility measurements is described. The apparatus consists of a pulsed laser vaporization/desorption source coupled through an ion gate to a 63-cm-long drift tube. The ion gate is a critical compone...
متن کاملExperimental Investigation of Ion Mobility Measurements in Oxygen under Different Gas Pressures
In this paper, measurements of ion mobility were performed in oxygen at gas pressures of 44.52 101.19 kPa using the drift tube method. Over this pressure range, mobility values were within the limits of 1.796 to 3.821 cm2·V·s were determined and ion mobility shown to decrease nonlinearly with increasing gas pressure towards a certain level of saturation. Ion mobility measured in air was lower t...
متن کاملExperimental and theoretical investigation into the correlation between mass and ion mobility for choline and other ammonium cations in N2.
A number of tertiary amine and quaternary ammonium cations spanning a mass range of 60-146 amu (trimethylamine, tetramethylammonium, trimethylethylammonium, N,N-dimethylaminoethanol, choline, N,N-dimethylglycine, betaine, acetylcholine, (3-carboxypropyl)trimethylammonium) were investigated using electrospray ionization ion mobility spectrometry. Measured ion mobilities demonstrate a high correl...
متن کاملTitle of Document : QUANTIFYING PARTICLE PROPERTIES FROM ION - MOBILITY MEASUREMENTS
Title of Document: QUANTIFYING PARTICLE PROPERTIES FROM ION-MOBILITY MEASUREMENTS. Mingdong Li, Doctor of Philosophy, 2012 Directed By: Michael R. Zachariah, Professor Chemical Physics Program Department of Mechanical Engineering and Chemistry Nanoparticles have received considerable interest due to the wide variety of potential applications in biomedical, optical, and electronic fields. Howeve...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Instrumentation
سال: 2018
ISSN: 1748-0221
DOI: 10.1088/1748-0221/13/11/p11016