title: Nondestructive ion trap mass analysis at high pressure.
abstract: A method for performing nondestructive ion trap mass analysis at high pressures (>1 mTorr) has been developed using image current measurement with constant dipolar excitation. Instead of monitoring the ion secular motion, a harmonic of the ion motion was used for narrow band image current measurement followed by Fourier Transform. The capability of this technique has been demonstrated with mass analysis using a single measurement at pressures of 10 mTorr or higher. Methods for mixture analysis and tandem mass spectrometry have also been developed for nondestructive mass analysis.
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: Jeffrey B
authors.initials: JB
authors.lastname: Maas
authors.forename: Frank J
authors.initials: FJ
authors.lastname: Boudreau
authors.forename: William J
authors.initials: WJ
authors.lastname: Chappell
authors.forename: Zheng
authors.initials: Z
authors.lastname: Ouyang
mesh_terms: D003042:Cocaine / Q000032:analysis; D005583:Fourier Analysis; D013058:Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D011312:Pressure
chemical_list: D003042:Cocaine