A metal organic framework material MIL-101(Cr)was used as the stationary phase for gas chromatography,and capillary columns and stainless steel packed columns were made respectively to separate combustible gases.Firstly,MIL-101(Cr)was synthesized and made into 60～100 mesh particles,which were then pumped into a 2 m stainless steel filled column and then connected to gas chromatography after aging.Under certain conditions,the chromatographic column can separate nitrogen,carbon monoxide,methane,carbon dioxide,ethane,ethylene,and acetylene,the peak time is short,both column efficiency and separation can meet the needs of daily use.Mixed the synthesized MIL-101(Cr)with dichloromethane to form a suspension,applied it to a 15 m capillary column using dynamic coating method,aged the chro-matographic column,and then connected it to gas chromatography to separate hydrocarbons according to the set conditions.Experimental results have shown that this capillary column can separate some hydrocarbons.
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