Miniature toroidal radio frequency ion trap mass analyzer.
A miniature ion trap mass analyzer is reported. The described analyzer is a 1/5-scale version of a previously reported toroidal radio frequency (rf) ion trap mass analyzer. The toroidal ion trap operates with maximum rf trapping voltages about 1 kVp-p or less; however despite the reduced dimensions, it retains roughly the same ion trapping capacity as conventional 3D quadrupole ion traps. The curved geometry provides for a compact mass analyzer. Unit-mass resolved mass spectra for n-butylbenzene, xenon, and naphthalene are reported and preliminary sensitivity data are shown for naphthalene. The expected linear mass scale with rf amplitude scan is obtained when scanned using a conventional mass-selective instability scan mode combined with resonance ejection.
Lammert
Stephen A
SA
Department of Chemistry and Biochemistry, Brigham Young University, C267 BNSN, 84602, Provo, UT, USA. slammerts@byu.edu.edu.|Adjunct Research Faculty, USA. slammerts@byu.edu.edu.
Rockwood
Alan A
AA
Department of Chemistry and Biochemistry, Brigham Young University, C267 BNSN, 84602, Provo, UT, USA.|Adjunct Research Faculty, USA.
Wang
Miao
M
Department of Chemistry and Biochemistry, Brigham Young University, C267 BNSN, 84602, Provo, UT, USA.
Lee
Milton L
ML
Department of Chemistry and Biochemistry, Brigham Young University, C267 BNSN, 84602, Provo, UT, USA.
Lee
Edgar D
ED
Palmar Technologies, Highland, Utah, USA.
Tolley
Samuel E
SE
Palmar Technologies, Highland, Utah, USA.
Oliphant
James R
JR
Palmar Technologies, Highland, Utah, USA.
Jones
Jeffrey L
JL
Palmar Technologies, Highland, Utah, USA.
Waite
Randall W
RW
Palmar Technologies, Highland, Utah, USA.