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Does the observed mass in quadrupole mass filters operated under standard analytical conditions depend on isomeric ion structure?
Author(s) -
Capron Laure,
Rolando Christian,
Sablier Michel
Publication year - 1994
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290081217
Subject(s) - chemistry , quadrupole , quadrupole mass analyzer , mass spectrometry , ion , dipole , mass , atomic physics , hybrid mass spectrometer , triple quadrupole mass spectrometer , analytical chemistry (journal) , mass spectrum , selected reaction monitoring , physics , tandem mass spectrometry , chromatography , organic chemistry
Recently published results have reported that mass displacements, which could reach 0.34 u, were observed in a quadrupole mass filter. An interaction between the dipole moment of ions and the quadrupolar RF field was then proposed to explain these mass displacements. We were interested by such an access to ion structure and decided to reproduce these results. Two sets of experiments were performed using two single‐stage quadrupole mass spectrometers operated under standard analytical conditions. Studies of the influence of resolution, source pressure and presence of helium or polar gas in the quadrupole enclosure on potential mass displacement detection have been performed. Nevertheless, we never observed significant mass shifts.