Patent ID: 8710432

Claim:
A GC source unit suitable for use in a mass spectrometer system, the mass spectrometer system operable in a first mode with an LC source [LC/MS] and in a second mode with a GC source [GC/MS], said GC source inputting into an ion source chamber for delivering the ionized output from the GC source to the mass spectrometer, the GC source unit comprising a GC interface probe wherein the GC source unit is retractably mounted to take the GC interface probe from a retracted position in which it is disengaged from the mass spectrometer of the system, whereby the system is operable in said first LC/MS mode, into a deployed position in which the GC interface probe is operatively connected to the ion source chamber of the mass spectrometer whereby the system is operable in said second GC/MS mode.