Plasma Analysers Gas Chromatographs OrthoSmart Plasma Detectors measuring trace impurities including hydrocarbons without FID. DID Helium Analysis of H2, Ne, O2+Ar, N2, Kr, CH4, CO, CO2 and Xe in Helium, Argon, Hydrogen, Nitrogen, Oxygen, Carbon Dioxide, Krypton and Xenon. OrthoPure DID This Plasma Detector analyses H2, Ne, O2+Ar, N2, Kr, CH4, CO, CO2 and Xe in PPB level. DID Argon This Plasma Detector Gas Chromatograph analyses H2, O2, N2, CH4, CO, CO2 in Argon. Online (continuous) Analysers Trace Nitrogen - AZ8000 Trace Nitrogen Analyser in Argon and Helium.