Probing trapped ion energies via ion-molecule reaction kinetics: Fourier transform ion cyclotron resonance mass spectrometry

Collision induced dissociation of stored gold cluster ions

“…The pressure of the buffer gas in the trap (6 × 10-6 mbar) was determined via the pressure dependent rate of the ionmolecule reaction CH4 + ÷ CH4--*CH + + CH 3 (9) and used for calibrating a vacuum gauge located further away from the trap. This calibration method was found to yield the same result as a pressure determination with an ionization gauge at the location of the Penning trap, in the absence of a magnetic field [28]. The time t between two collisions is given by…”

Gas-Phase Reactions of Doubly Charged Lanthanide Cations with Alkanes and Alkenes. Trends in Metal(2+) Reactivity

“…They were checked in-situ for their purity via electron-ionization (EI) mass spectra. The neutral reagent pressures were measured with a BayardAlpert type ionization gauge and calibrated using standard reactions of methane [32] and acetone [33] ions. The gauge readings were corrected for the relative sensitivities of the different reagents according to the approach of Bartmess and Georgiadis [34].…”

Gas-Phase Oxidation of Cm+ and Cm2+ − Thermodynamics of Neutral and Ionized CmO

“…10 -8 to 10 -7 Torr; for some experiments, an initial oxidation step was accomplished by an oxidant gas introduced though pulsed valves. Pressures were measured with a calibrated [22][23][24][25] Bayard-Alpert type ionization gauge. Isolation of the reactant ions was achieved by ejection of other ions using single-frequency, frequency sweep, or SWIFT excitation [26].…”