片语
nitrogen heterocyclics polymeric chelant氮杂环类高分子螯合剂
natural polymeric chelant天然高分子螯合剂
backbone type polymeric chelant主链型高分子螯合剂
thiourea polymeric chelant硫脲类高分子螯合剂
metal ion chelant金属离子螯合剂
pyrrole rings polymeric chelant吡略环类高分子螯合剂
uranium chelant铀螯合剂
polymeric chelant高分子螯合剂
Acidic chelant酸性螯合剂