Full-text Article (Subscribers only)
Full-text article (51 kB)
(subscribers only)

Buy article on-line and get access immediately
Buy article on-line for £11.75
(get immediate access)

Search
Search

Go Back

Eur. J. Mass Spectrom. 6, 319 - 323 (2000)

Hyperthermal surface ionization in a time-of-flight mass spectrometer

Christian Weickhardt* and Lars Draack
Lehrstuhl Physikalische Chemie und Analytik, Brandenburgische Technische Universität Cottbus, Erich-Weinert-Straße 1, 03044 Cottbus,
Jürgen Grotemeyer
Institut für Physikalische Chemie, Christian-Albrechts Universität Kiel, Ludewig-Meyn-Straße 8, 24118 Kiel,

ABSTRACT:
An apparatus is described which couples hyperthermal surface ionization (HSI) with time-of-flight mass spectrometry. In order to adapt HSI to the non-continuously working time-of-flight mass spectrometer, it is performed in a pulsed supersonic molecular beam. The ion bunch formed by the surface scattering process is accelerated from a specially-designed ion source into a reflectron time-of-flight mass spectrometer. In this way features of HSI such as high ionization yield and tunable degree of fragmentation are combined with the advantages of the time-of-flight mass spectrometer, namely its high transmission, its in principle unlimited mass range, and the simultaneous detection of the entire mass range. The resulting instrument thereby opens up hyperthermal surface ionization to applications demanding high temporal resolution.

Keywords: hyperthermal surface ionization, time-of-flight mass spectrometers, pulsed inlet systems

You can now buy this paper on-line in PDF format; it costs only £11.75. Just click on the BUY on-line button. You can pay on-line through a secure server and get access immediately.


© IM Publications
Any problems? E-mail .