重金属螯合剂，通常也被叫做重金属离子析出剂，重金属捕集剂等。
经重金属毒性浸出试验表明，茶皂素对飞灰中的重金属具有较强的束缚能力，其稳定化效果与硫脲和磷酸钠螯合剂能力相当。
The results show that saponin has a stronger fixing capacity for heavy metals, and has the same fixing efficiency as thiourea and tertiary sodium phosphate.
采用高分子有机螯合剂与废水中的多种重金属离子发生螯合反应，生成稳定且不溶于水的金属螯合物来去除废水中的重金属离子。
Using organic chelating agent to response with several kinds of heavy metal ion, then the heavy metal ion will be reduced by forming the product with high stability and hardly dissolved by water.
应用推荐