activated carbon packed column的用法和样例：
- Carbon Absorbers are made of fiberglass reinforced plastic (FRP) shell and activated carbon packing; these units can have single or dual carbon beds that can be either vertical or horizontal.
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- METHODS GC was used with packed column and capillary column, respectively.
- Using internal standard method, the content of trimethylacetic acid in its synthetic fluid prepared by pressure catalytic process from isobutene and carbon monoxide was measured with packed column.