ABSTRACT

ItisclearfromEqs.19and11thatthevalueaGELstronglydependsontheionicstrength (seeniofEq.11)oftheliquidmedium:Foragivenvalueof<j>0 ,aGELhasthehighestabsolute valueatthelowestsaltcontent.ThevaluesforliKarefor0.1MNaCl:10A,for0.01M NaCL:100A,andfor10-5MNaCl:1000A.Atphysiologicalsaltconcentration(i.e.,0.15 MNaCl),liK=8A.Thus,inmoredilutesaltsolutions,ELinteractionsaremeasurableat muchgreaterdistancesthanathighionicstrengths(Eq.9).