Preparation method for sample for analysis of dioxins and preparation apparatus for the same

摘要

A highly reliable hydrophilic sample for analysis of dioxins suitable for analysis through a bioassay method is prepared from a hydrophilic solution of dioxins simply and in a short period of time. A preparation method for a sample for analysis of dioxins includes: supplying a hydrophobic solution of dioxins to a latter column ( 22 ) filled with a silica gel-based filler ( 22 a); supplying to and passing through the latter column ( 22 ) supplied with the hydrophobic solution a hydrophobic solvent; supplying to and passing through a solvent substitution column ( 30 ) filled with an alumina-based filler ( 30 a) the hydrophobic solvent passed through the latter column ( 22 ); supplying to and passing through the solvent substitution column ( 30 ) a hydrophilic solvent capable of dissolving dioxins from a second solvent supply part ( 70 ) in a direction opposite to the direction of the hydrophobic solvent passed through the solvent substitution column ( 30 ); and acquiring the hydrophilic solvent passed through the solvent substitution column ( 30 ).