Method for rapidly determining halogen in soil

The invention belongs to the technical field of determination of halogen in soil, and discloses a method for rapidly determining halogen in soil. The method comprises the following steps: adding sulfuric acid and hydrogen peroxide into a soil sample to be detected to obtain a premix; distilling the premix until the sulfuric acid is boiled for 10-15 minutes so as to evaporate out halogen in the soil sample to be detected in the form of corresponding acid to obtain halogen mixed acid steam; condensing and liquefying the mixed acid steam, absorbing with water to obtain a halogen mixed acid solution, and fixing the volume to obtain a solution to be detected; the iodine and the bromine are determined by an ICP-MS method, or the fluorine, the chlorine, the bromine and the iodine are determined by an ion chromatography method, so that the halogen in the soil sample to be determined can be simultaneously determined. According to the method, hydrogen peroxide reduction-sulfuric acid distillation and pure water absorpt