日本遗弃化学武器销毁残渣中元素分析及砷形态分析

本文就日本遗弃在华化学武器销毁残渣元素分布进行了分类分析,并对残渣样品的砷形态进行检测。结果表明,黄剂及红剂销毁残渣样品中主要元素均为铁、铜、砷、钛、铅等,其中砷元素占比较大且危害最深。进一步对样品进行分析结果显示,残渣中砷形态主要为Fe-结合态、Ca-结合态、残渣态等。该实验结果为销毁残渣的二次处理提供了必要的技术支撑,在敦促日方改进销毁技术方面具有重要的现实意义。

A Study on Speciation Analysis of Arsenic in Residues ofJapanese Abandoned Chemical Weapons

In this paper, the disaggregation analysis of the chemical elements in Japanese Abandoned Chemical Weapons(JACW) in China was carried out and the arsenic speciation of the residue samples was tested. The results showed that the main components of the HD/L residue and the DC/DA residue were all iron, copper, arsenic, titanium, plumbum, etc. Among them, the arsenic accounted for the largest and the worst hazard. Further analysis of the samples showed that the main arsenic speciation in the residue were Fe-bound, Ca-bound, and residuals. The experimental results provided the necessary technical support for the secondary disposal of the destructive residue and had an important practical significance in urging Japan to improve the destructive technology.