title: Miniature toroidal radio frequency ion trap mass analyzer.
abstract: 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.
authors.affiliation: 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.
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Lammert
authors.affiliation: Department of Chemistry and Biochemistry, Brigham Young University, C267 BNSN, 84602, Provo, UT, USA.|Adjunct Research Faculty, USA.
authors.forename: Alan A
authors.initials: AA
authors.lastname: Rockwood
authors.affiliation: Department of Chemistry and Biochemistry, Brigham Young University, C267 BNSN, 84602, Provo, UT, USA.
authors.forename: Miao
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Chemistry and Biochemistry, Brigham Young University, C267 BNSN, 84602, Provo, UT, USA.
authors.forename: Milton L
authors.initials: ML
authors.lastname: Lee
authors.affiliation: Palmar Technologies, Highland, Utah, USA.
authors.forename: Edgar D
authors.initials: ED
authors.lastname: Lee
authors.affiliation: Palmar Technologies, Highland, Utah, USA.
authors.forename: Samuel E
authors.initials: SE
authors.lastname: Tolley
authors.affiliation: Palmar Technologies, Highland, Utah, USA.
authors.forename: James R
authors.initials: JR
authors.lastname: Oliphant
authors.affiliation: Palmar Technologies, Highland, Utah, USA.
authors.forename: Jeffrey L
authors.initials: JL
authors.lastname: Jones
authors.affiliation: Palmar Technologies, Highland, Utah, USA.
authors.forename: Randall W
authors.initials: RW
authors.lastname: Waite