Letter: A simple ion source set-up for desorption/ionization on silicon with ion mobility spectrometry and ion mobility spectrometry-mass spectrometry |
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Authors: | Adamov Alexey Sysoev Alexey A Grigoras Kestutis Laakia Jaako Kotiaho Tapio |
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Institution: | Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, PO Box 55, FI-00014, Helsinki Finland. alexey.adamov@helsinki.fi |
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Abstract: | Using a simple ion source set-up, laser desorption/ionization on silicon (DIOS) was demonstrated with the use of a custom-made drift tube ion mobility spectrometer (IMS), mounted on a commercial triple quadrupole mass spectrometer, and with an IMS equipped with a Faraday plate detector. DIOS was tested by mobility measurement of tetrapropylammonium iodide, tetrabutylammonium iodide and tetrapentylammonium iodide, whilst 2,6-di-tert- butylpyridine was used as a standard. The reduced mobilities measured for the test halides are in concordance with previously obtained ion mobility spectrometry-mass spectrometry data. |
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