小中大建议可试试Supelco公司的Supelpak-S(类似PoraPak QS但有些差别)。
它的说明提到了两点。
1.water in the stack gas is quickly eluted from the column and does not interfere with the separation of the sulfur gases.
2.the column can separate H2S from COS
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效果不一定比这个好多少,而且supelco一般用特氟龙柱管,不能用在DID上。