Analysis Technique of Impurity in High Purity Deuterium by Cryogenic Gas-Chromatography

A veracious and applicable quantitative analysis method of O₂， N₂ and H₂， HD in high purity deuterium by the chromatogram columniation filled with 5A molecular sieve and alumina was researched and constituted at natural temperature and 77 K, respectively. Minimum detecting limit of the present method is (150-200)×10^-6 for H₂ and HD, and it can meet the need of quantitative analysis of the impurity during high purity deuterium preparation.