METHOD OF ANALYZING HARMFUL METAL ELEMENTS AND PRETREATMENT METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a method of the pretreatment of harmful metal elements which can enable the analysis of at least two harmful metal elements in earth at one time for a short time. SOLUTION: There is provided a pretreatment method for the analysis of harmful metal elements, comprising the first step of adding a reducing agent to a solution containing components in earth to reduce metal elements in the test liquid; the second step of adding a complexing agent to the solution to generate a solid component containing a complexing compound of chlorine in the presence of the harmful metals in the solution; and the third step of removing a liquid component in the solution to extract the solid component. COPYRIGHT: (C)2005,JPO&NCIPI