High Purity Gas Trace Impurities

Analyzer Description

4-valve, micro-packed and capillary columns, PDHID
Sample type:
High purity non-condensable gases (helium, hydrogen, nitrogen, argon, etc.)
Components separated:
Helium, hydrogen, nitrogen, oxygen/argon composite, carbon monoxide, carbon dioxide, methane
Lower detection limits:
20-50 ppb (component and matrix dependent)
Methods met:
Wasson-ECE 410

Typical Chromatogram

Trace impurities in nitrogen

Key Features and Benefits

  • Oxygen will be detected but will not be quantified. For accurate oxygen analysis an external oxygen sensor is required.
  • Internally purged diaphragm valves ensure no air contamination and the lowest detection limits possible
  • Ultra-high purity fittings and regulators
  • Cryogenic cooling may be used to separate argon and oxygen