An ion mobility mass spectrometer for investigating photoisomerization and photodissociation of molecular ions
BD Adamson, NJA Coughlan, PB Markworth, RE Continetti, EJ Bieske
REVIEW OF SCIENTIFIC INSTRUMENTS | AMER INST PHYSICS | Published : 2014
An ion mobility mass spectrometry apparatus for investigating the photoisomerization and photodissociation of electrosprayed molecular ions in the gas phase is described. The device consists of a drift tube mobility spectrometer, with access for a laser beam that intercepts the drifting ion packet either coaxially or transversely, followed by a quadrupole mass filter. An ion gate halfway along the drift region allows the instrument to be used as a tandem ion mobility spectrometer, enabling mobility selection of ions prior to irradiation, with the photoisomer ions being separated over the second half of the drift tube. The utility of the device is illustrated with photoisomerization and photo..View full abstract
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Awarded by Australian Research Council
Construction of the IMS apparatus was possible because of outstanding technical input from R. Mathys, Science Faculty Workshop. This research was supported under the Australian Research Council's Discovery Project funding scheme (Project Nos. DP110100312 and DP120100100).