Account: ZEKE spectroscopy: high resolution laser spectroscopy in a modified time-of-flight mass spectrometer

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Eur. J. Mass Spectrom. 2, 3 - 13 (1996)

Account: ZEKE spectroscopy: high resolution laser spectroscopy in a modified time-of-flight mass spectrometer

Chahan Yeretzian, Heinrich L. Selzle and Edward W. Schlag
Institut für Physikalische und Theoretische Chemie, Technische Universität München, D-85747 Garching, .

ABSTRACT:

In this article, a method for high-resolution laser spectroscopy of ionstermedZEro-Kinetic Energy spectroscopy (ZEKE)is reviewed. Emphasis will be put on a more recent, mass-selective version (mass-analyzed ZEKE). A detailed description of the apparatus, designed and built at the Technische Universität München, will first be given. In a second part, we outline two applications which are particularly suited to illustrate the potential of the method. We hope to demonstrate to the mass spectrometry community the close connection between a ZEKE spectrometer and a conventional reflectron time-of-flight mass spectrometer(TOF-MS). Adding one single electrostatic field lens to the extraction field region of a TOF-MS allows to go far beyond mass analysis, distinguishing, for example, between isomeric structures or determining the geometric structure of molecular ions.

Keywords:

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