| 摘要 |
A fractionating tool (200) capable of fractionating dioxins contained in a solution of dioxins includes a tubular body (210) opening at both ends, and a purification layer (220) and an adsorption layer (230) packed therein. The adsorption layer (230) includes a first adsorption layer (240) including an activated carbon-containing silica gel layer (241) and a graphite-containing silica gel layer (242), and a second adsorption layer (250) including an alumina layer (251). When a solution of dioxins is injected into the purification layer (220) and then a solvent capable of dissolving dioxins is supplied thereto, the solvent dissolves dioxins and passes through the purification layer (220) and the adsorption layer (230). In this process, non-ortho PCBs, PCDDs and PCDFs among dioxins are adsorbed to the first adsorption layer (240), and mono-ortho PCBs among dioxins are adsorbed to the second adsorption layer (250). As a result, dioxins are fractionated. |
