A tandem time-of-flight mass spectrometer: combination of a multi-turn time-of-flight and a quadratic-field mirror

Eur. J. Mass Spectrom. 11, 181–187 (2005)
DOI: 10.1255/ejms.735

A tandem time-of-flight mass spectrometer: combination of a multi-turn time-of-flight and a quadratic-field mirror

Michisato Toyoda,^a Anastassios E. Giannakopulos,^b,* Alex W. Colburn^b and Peter J. Derrick^b
^aDepartment of Physics, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
^vbInstitute of Mass Spectrometry and Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK

ABSTRACT:

A tandem time-of-flight (ToF) mass spectrometer consisting of a multi-turn time-of-flight (ToF) and a quadratic-field ion mirror has been designed and constructed. The instrument combines the unique capabilities of both ToF instruments, namely high-resolution and monoisotopic precursor ion selection from the multi-turn ToF and temporal focus for fragment ions with different kinetic energies from the quadratic-field mirror. The first tandem mass spectra for this unique combination of ToF systems are presented.

Keywords: tandem time-of-flight mass spectrometer, multi-turn time-of-flight mass spectrometer, quadratic-field ion mirror

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