ION EXCHANGE CHROMATOGRAPHY

       

      Ion exchange  chromatography (IEC) is the process  by which  a  mixture  of  similar charged ions can be separated  by using  an  ion exchange  resin  which exchange  ions  according  to their  relative  affinities. 

      There  is  a  reversible  exchange of  similar  charged  ions. Mostly  similar  charged ions  like  cations or  anions  can  be separated  by  this  technique.

       The  principle  of  separation  is  by  reversible  exchange   of  ions  between  the  ions  present  in  the  solution  &  those  present  in  the  ion  exchange  resin.  

       

1. Anion exchanger: similarly,  separation  of anions using  anion  exchange  resin  can  be carried out.

       2. Cation exchanger: The cations to be separated  are present  in  solution  & exchanges  for  similar  ions  present in cation  exchange  resin, a solid matrix.

 

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