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利用金属钯或钯合金对氢气独特的渗透能力，在特殊的实验装置及一定的操作条件下，将Ｎｅ或Ｈｅ中Ｈ２定量转移到Ａｒ或Ｎ２气中，以气敏元件为检测器，实现对高纯Ｎｅ、Ｈｅ中痕量Ｈ２的测定，其检测限为０．１×１０－６。
The use of metal palladium or palladium alloy on the unique ability of hydrogen penetration in a special experimental device and under certain operating conditions, the Ne or He H2 quantitative transfer to Ar or N2 gas to gas sensor as the detector to achieve the High-purity Ne, He trace H 2 determination, the detection limit of 0.1 × 10-6.