| 摘要 |
A chelate resin having a functional group of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl, aminoalkyl, phenyl or a substituted group thereof and another functional group of the formula: ##STR2## wherein R.sub.3 is amino, alkylamino, polyethylenepolyamino, hydrazo, hydrazino, hydrazono, amidino, guanidino, semicarbazide or a substituted group thereof, has an excellent adsorption capacity for metal ions. |
