Novel tandem quadrupole-acceleration-deceleration mass spectrometer for neutralization-reionization studies
- 1 July 1992
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Society for Mass Spectrometry
- Vol. 3 (5) , 493-501
- https://doi.org/10.1016/1044-0305(92)85026-g
Abstract
A new tandem mass spectrometer of the quadrupole-acceleration lens-deceleration. lens-quadrupole (QADQ) configuration is described. The instrument is designed for neutralization-reionization studies and consists of a 2000-u quadrupole mass analyzer as MS-I, an acceleration electrostatic lens, a series of three differentially pumped collision cells, and an electrostatic deceleration lens, energy filter, and another 2000-u quadrupole mass analyzer as MS-II. The ion optical system achieves high total ion transmission for 5–9-keV ions. Unit mass resolution in neutralization-reionization mass spectra of aromatic compounds is demonstrated. Mass, kinetic energy, and linked scans at various levels of mass resolution and sensitivity are described.Keywords
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