Laser ionization ion mobility spectrometric interrogation of acoustically levitated droplets

2019 ◽  
Vol 411 (30) ◽  
pp. 8053-8061 ◽  
Author(s):  
Aleksandra Michalik-Onichimowska ◽  
Toralf Beitz ◽  
Ulrich Panne ◽  
Hans-Gerd Löhmannsröben ◽  
Jens Riedel
Keyword(s):  
Ion Mobility ◽  
Laser Ionization ◽  
Levitated Droplets

Parameters of laser ionization of explosives for ion mobility spectrometry

2018 ◽  
Author(s):  
Gennadii E. Kotkovskii ◽  
Alexander A. Chistyakov ◽  
Artem E. Akmalov ◽  
Vitalii A. Kostarev
Keyword(s):  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Laser Ionization

Measuring the effects of Coulomb repulsion via signal decay in an atmospheric pressure laser ionization ion mobility spectrometer

2018 ◽  
Vol 24 (4) ◽  
pp. 330-336 ◽  
Author(s):  
Marvin Ihlenborg ◽  
Ann-Kathrin Schuster ◽  
Jürgen Grotemeyer ◽  
Frank Gunzer
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Ion Mobility ◽  
Atmospheric Pressure ◽  
Coulomb Repulsion ◽  
Laser Ionization ◽  
Ion Mobility Spectrometer ◽  
Signal Decay ◽  
Ionization Sources ◽  
Reaction Region

Using lasers in ion mobility spectrometry offers a lot of advantages compared to standard ionization sources. Especially, the ion yield can be drastically increased. It can, however, reach levels where the Coulomb repulsion leads to unwanted side effects. Here, we investigate how the Coulomb repulsion can be detected apart from the typical signal broadening by measuring effects created already in the reaction region and comparing them with corresponding finite element method simulations.

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