Open AccessDuty cycle enhancement of an orthogonal acceleration TOF mass spectrometer using an axially-resonant excitation linear ion trap
Author(s) -
Yuichiro Hashimoto,
Hideki Hasegawa,
Hiroko Satake,
Takashi Baba,
Izumi Waki
Publication year - 2006
Publication title -
journal of the american society for mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.961
H-Index - 127
eISSN - 1879-1123
pISSN - 1044-0305
DOI - 10.1016/j.jasms.2006.07.020
Subject(s) - duty cycle , ion trap , axial symmetry , chemistry , mass spectrometry , excitation , ion , acceleration , atomic physics , quadrupole ion trap , range (aeronautics) , time of flight mass spectrometry , time of flight , analytical chemistry (journal) , physics , materials science , voltage , chromatography , organic chemistry , quantum mechanics , classical mechanics , composite material , ionization
We report a new technique to enhance detection duty cycle of an orthogonal-acceleration time-of-flight mass spectrometer (oaTOF) over a broad mass range. To this end, we used an axially-resonant-excitation linear ion trap, which ejects ions axially and mass selectively into a non-mass-selective linear ion trap in front of the TOF pusher. A delay between the ejection timing of the non-mass-selective LIT and the push timing of the oaTOF was swept mass-synchronously with the axially-resonant-excitation linear ion trap, so that ions are detected with duty cycle larger than 60% over a wide mass range from m/z 174.1 to 1922.0, which is 3 to 10 times better than conventional oaTOF.