Sensor tech manufacturer Process Sensing Technologies (PST) has released a new cryogenic trap system to ensure ultra-high purity (UHP) helium carrier gas purity for gas chromatographs (GCs).

The new LDCryo is a stand-alone system that – when used with the LDP1000 heated gas purifiers - generates 99.9999999% purity helium which is utilised as a carrier gas in process GCs.

The full LDCryo assemblage.

The full LDCryo assemblage.

PST’s pressure monitoring LDPMS device complete with purge/bypass valve arrangement is also included in the system.

Configured with VCR and welded gas connections, a 50 litre Dewar casing houses two stainless steel traps mounted in parallel. This arrangement ensures rotation and continuous uninterrupted carrier supply without interruption.