Abstract: A lens assembly for an outer source of a mass spectrometer, the assembly comprising: a housing; a plurality of lens elements, each lens element comprising a radially extending electrically conductive protrusion, the lens elements being linearly arranged in the housing such that the protrusions are aligned with one another; and an interface connector having a plurality of sockets to receive the protrusions therein and create an electrical connection between the protrusions and sockets. A housing for a resistance temperature detector is also disclosed.

Abstract: A GC/MS arrangement, comprising: a GC unit; an MS unit; a transfer line fluidly connecting the GC unit and the MS unit a carrier gas valve for selectively supplying carrier gas to the transfer line; at least one monitoring unit associated with the MS unit for monitoring at least one operational condition of the MS unit; and a controller connected to the at least one monitoring unit and carrier gas valve, configured to close the carrier gas valve when a predetermined operational event is detected by the at least one monitoring unit.

Abstract: A transfer line for a GCMS arrangement, the transfer line comprising: a transfer probe having a probe bore to receive a GC column; a sealing cap movably mounted at a first end of the transfer probe; and a resilient element arranged to bias the sealing cap away from the first end of the transfer probe.