the sorbability of some ionic species and the sorption abilities of different types of mf were evaluated in terms of the sorption constant defined by ksor , ca = [ ( c+ , a- ) f ] / [ c+ ] [ a- ] , where c+ , a- and ( c+ , a- ) refer to the cation , anion and the ion pair , respectively , and f refers to the filter phase .
C0007447
cation
C0022023
ion