Using Collision Cross Section Distributions to Assess the Distribution of Collision Cross Section Values
نویسندگان
چکیده
منابع مشابه
High performance collision cross section calculation-HPCCS.
Since the commercial introduction of Ion Mobility coupled with Mass Spectrometry (IM-MS) devices in 2003, a large number of research laboratories have embraced the technique. IM-MS is a fairly rapid experiment used as a molecular separation tool and to obtain structural information. The interpretation of IM-MS data is still challenging and relies heavily on theoretical calculations of the molec...
متن کاملDevelopment of Models for the Calculation of Collision Cross Section
Ion mobility spectrometry (IMS) consists of an analytical technique that can separate gas phase ions based on their size, shape and polarizability [1]. In turn, the mobility can be used to determine the collision cross section (Ω), which is a measure of an ion’s conformation in the gas phase. As the number of collisions is dependent on the conformations of an analyte, ions of identical composit...
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Introduction Carotenoids are naturally occurring pigments that function as provitamin A compounds and antioxidants. Biosynthesized in plants as the all-trans isomers, carotenoids undergo isomerization to form multiple cis isomers which have been reported to have different bioavailabilities [1]. Although C30 stationary phases are available to facilitate the chromatographic separation of caroteno...
متن کاملFirst measurement of the hydrogen spin-exchange collision cross-section in the low temperature region
The spin-exchange collision cross-section for hydrogen atoms has been measured for the first time in the low temperature range 40–100 K by using the polarized hydrogen gas target of the HERMES experiment at DESY (Hamburg, Germany). The results agree with a previous measurement in the overlapping temperature region 80–100 K, while seem to hint an increasing behaviour with temperature in the regi...
متن کاملUpdate of UCL computer codes for the calculation of fine-structure electron-atom collision cross-section
Article history: Received 24 February 2010 Received in revised form 8 June 2010 Accepted 17 June 2010 Available online 19 June 2010
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ژورنال
عنوان ژورنال: Analytical Chemistry
سال: 2020
ISSN: 0003-2700,1520-6882
DOI: 10.1021/acs.analchem.9b05130