Vent Free GC/MS Adapter N-50

GC/MS interface that allows quick column exchange without venting MS to the atmosphere

Vent-free GC/MS Adapter is a simple and useful interface used for GC/MS analysis, and allows switching of a GC separation columns while the MS detector is in operation by connecting a highly deactivated capillary tube (id 0.15 mm, length 50 cm or 70 cm) between the separation column and the MS detector.
Changing columns takes only a few minutes. The Vent-free GC/MS Adapter is especially useful when a Py-GC/MS separation column and a capillary tube for evolved gas analysis (EGA) are switched between analysis using a Multi-Shot Pyrolyzer.