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guojinwei

铜虫 (小有名气)

[求助] 气相色谱的问题

我用TCD检测甲烷的浓度变化,正常情况下应该是15万左右,可是现在只有5万,加大流量后,甲烷的量无明显变化,甲烷不反应!!!

气体过柱子需要30分钟    2分钟是氮气  5分钟是甲烷  10分钟是CO2         主要是甲烷的峰面积变小
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