The influences of molar ratio of reagent

reaction temperature

and reaction time on the synthesis of 1-(2-aminoethyl) pyrrolidine resin (AEPDR) have been studied. The functional group capacity of AEPDR is 2.74 mmol/g resin. The sorption capacities of AEPDR for Au (III)

Os(IV)

Pt(IV)

Ir(IV)

Ru(III)

and Pd(II) are as high as 950

520

436

418

314

and 302 mg ion/g resin

respectively. The structure of AEPDR was confirmed by FT-IR and elementary analysis. The sorption rate curves and complex ratio were determined. The apparent sorption activation energies for Au(III) and Pt(IV) are △EAu=6.3 and △EPt=33.7 kJ/mol

respectively. The sorption mechanism has been nvestigated by XPS.