TOOL FOR FRACTIONATING DIOXINS
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United States of America Patent
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Issued Date -
Dec 31, 2015
app pub date -
May 27, 2013
filing date -
May 27, 2013
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Abstract
A fractionating tool capable of fractionating dioxins contained in a solution of dioxins includes a tubular body opening at both ends, and a purification layer and an adsorption layer packed therein. The adsorption layer includes a first adsorption layer including an activated carbon-containing silica gel layer and a graphite-containing silica gel layer, and a second adsorption layer including an alumina layer. When a solution of dioxins is injected into the purification layer and then a solvent capable of dissolving dioxins is supplied thereto, the solvent dissolves dioxins and passes through the purification layer and the adsorption layer. In this process, non-ortho PCBs, PCDDs and PCDFs among dioxins are adsorbed to the first adsorption layer, and mono-ortho PCBs among dioxins are adsorbed to the second adsorption layer. As a result, dioxins are fractionated.
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