Acetone and perdeuterated acetone in UV-IMS

Acetone and perdeuterated acetone in UV-IMS Measuring a mixture of acetone and perdeuterated acetone (acetone-d6) with an ultra-high resolution drift time ion mobility spectrometer (resolving power of R = 235) and ultraviolet ionization (10.6 eV) at ambient pressure reveals three separated peaks. Two of the peaks can easily be associated with acetone and perdeuterated acetone. In a former publication several findings indicated an exchange of a methyl group and the formation of a H COCD related peak. In this work the formed ion species were 3 3 analyzed with a high resolution drift time ion mobility time of flight mass spectrometer. The mass spectra clearly show the formation of three proton-bound dimer peaks whereas the peak between acetone and acetone-d6 is a proton-bound mixed dimer consisting of one acetone and one acetone-d6 molecule. . . . . . Keywords UV-IMS Isotopologues Ultra-high resolution IMS Acetone Atmospheric pressure photoionization APPI Introduction The ion mobility K can be theoretically estimated from the ions’ structure and mass [19–21]or be calculated from exper- The separation of ions in drift time ion mobility spectrometers imental IMS measurements. Therefore, K is defined as (IMS) is based on the collision of the ions with neutral drift follows: gas under the influence of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal for Ion Mobility Spectrometry Springer Journals
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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Chemistry; Analytical Chemistry; Physical Chemistry; Molecular Medicine; Proteomics; Ecotoxicology; Safety in Chemistry, Dangerous Goods
ISSN
1435-6163
eISSN
1865-4584
D.O.I.
10.1007/s12127-018-0234-2
Publisher site
See Article on Publisher Site

Abstract

Measuring a mixture of acetone and perdeuterated acetone (acetone-d6) with an ultra-high resolution drift time ion mobility spectrometer (resolving power of R = 235) and ultraviolet ionization (10.6 eV) at ambient pressure reveals three separated peaks. Two of the peaks can easily be associated with acetone and perdeuterated acetone. In a former publication several findings indicated an exchange of a methyl group and the formation of a H COCD related peak. In this work the formed ion species were 3 3 analyzed with a high resolution drift time ion mobility time of flight mass spectrometer. The mass spectra clearly show the formation of three proton-bound dimer peaks whereas the peak between acetone and acetone-d6 is a proton-bound mixed dimer consisting of one acetone and one acetone-d6 molecule. . . . . . Keywords UV-IMS Isotopologues Ultra-high resolution IMS Acetone Atmospheric pressure photoionization APPI Introduction The ion mobility K can be theoretically estimated from the ions’ structure and mass [19–21]or be calculated from exper- The separation of ions in drift time ion mobility spectrometers imental IMS measurements. Therefore, K is defined as (IMS) is based on the collision of the ions with neutral drift follows: gas under the influence of

Journal

International Journal for Ion Mobility SpectrometrySpringer Journals

Published: Jun 5, 2018

References

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