| 摘要 |
PROBLEM TO BE SOLVED: To remove impurities from a liquid and particularly to efficiently refining fusarium toxins in the cereals by arranging an activated carbon layer and an aluminum oxide layer from the inlet side of the liquid to be purified between the inlet and the outlet connected through a flow path and making the liquid to pass through the layers. SOLUTION: A chromatographic column 1 is provided with an inlet 2 to which a liquid sample to be purified is introduced, an outlet 6 for discharging the purified liquid sample and a flow path 10 for connecting the inlet and the outlet. An activated carbon 3 layer and an aluminum oxide 4 layer are arranged as stationary layers in this order between the inlet 2 and the outlet 6. First, impurities such as pigments are removed from the liquid sample at the activated carbon 3 layer and then impurities such as remaining fat, carbohydrates and proteins are removed at the aluminum oxide 4 layer. The activated carbon passing through a 100-mesh to 400-mesh screen is used and the aluminum oxide passing through a 70-mesh to 230-mesh screen is used.
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