A system for determining the ratio of mass to charge of an ion including a pulsed ionizer, a high pressure co-linear ion guide/accelerator, and a mass analyzer. The pulsed ionizer generates intact analyte ions from a sample of matter to be analyzed. The high pressure co-linear ion guide/accelerator is...http://www.google.fr/patents/US6809318?utm_source=gb-gplus-shareBrevet US6809318 - Method of transmitting ions for mass spectroscopy
