gc-ms: varian 450gc - 300 ms/ms

scan modes: q1ms, q3ms, precursor (parent), product(daughter), neutral loss, selected ion monitoring (sim), selected reaction monitoring (srm), full scan ionization modes: electron ionization (ei) or positive/negative chemical ionization (ci)
source: ei/ci source with vacuum interlock for quick change of ion volumes; entrance hexapole isolates source contaminants from mass filter
source temperature: independent control, 20 c to 325 c
filament: single, 50 to 500 μa
electron energy: 20 ev, 70 ev or 150 ev
mass filters: quadruple with pre- and post-filters; lensless design maximizes transmission efficiency
collision cell: 180 curved path with pre- and post filter region; long path ensures high dissociation efficiency
mass range: up to 800 da
scan rate: up to 6000 da/sec
resolution: 0.7 da at 1250 da/sec or 0.6 da at 500 da/sec
ei dynamic range: >10^5 (compound dependent)
mass axis stability: 0.1 da over 24 hours
transfer line temperature: independent control; 50 c to 325 c
manifold temperature: independent control; 30 c to 50 c
ion detector: positive or negative ions, constant 5 kv post-acceleration voltage
carrier gas flow: up to 8 ml

varian 450 gc

factorfour capillary column: vf-5ms, 30m x 0.25mm id, df=0.25um