Mass selective ejection by axial resonant excitation from a linear ion trap.
We describe a new mass selective ejection method from a linear ion trap, which we call axial resonant excitation (AREX). A set of vane lenses are inserted between each quadrupole rod to produce electrostatic potential that is approximately harmonic along the central axis of the quadrupole field. After ions with specific m/z are resonantly oscillated in the axial direction, the ions are mass selectively ejected in the axial direction. At a high scan rate of 11 Th/ms, AREX achieved a high ejection efficiency of more than 60%, which is more than three times higher than a conventional mass selective axial ejection method from a linear trap using fringing field.
Hashimoto
Yuichiro
Y
Central Research Laboratory, Hitachi, Ld., Tokyo, Japan.
Hasegawa
Hideki
H
Baba
Takashi
T
Waki
Izumi
I
D001665:Binding Sites; D001672:Biocompatible Materials / Q000737:chemistry*; D050091:Dendrimers; D006834:Hydrazines / Q000737:chemistry; D011073:Polyamines / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000295:instrumentation / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000295:instrumentation / Q000379:methods*
D001672:Biocompatible Materials; D050091:Dendrimers; D006834:Hydrazines; C104700:PAMAM Starburst; D011073:Polyamines; C029424:hydrazine; D012834:Silver