PROBLEM TO BE SOLVED: To provide a method for simply and rapidly measuring contaminant substance even at the site by adding and mixing extract to and with sampled soil to analyze the soil, then efficiently separating the mixed liquid, easily obtaining the liquid to be extracted which can be measured without abnormal value even it is measured. SOLUTION: The method for analyzing soil has the steps of adding and mixing extract to and with the sampled coil, and then analyzing the liquid to be extracted obtained by separating the mixed liquid of the soil and the extract, and comprises the steps of adding the extract to the soil to extract the contaminant substance in the soil, then adding flocculant containing no contaminant substance to the contaminant substance to be measured, thereby expediting the separation of the liquid to be extracted from the mixed liquid of the soil and the extract, and further simply and rapidly measuring the contaminant substance of the liquid to be extracted by a simple analyzing method.
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