Answer / abhilash

ION exchange chromatography is in wide use for seperation of
aminoacids.
it employs resins such as strongly acidic cation
exchanger,dowex-50 and a strongly basic anion exchanger dowex-1.
former is polysterene sulfonic acid and latter a polysterene
quartenary ammonium salt.

Why does ion-exchange chromatography generally use a salt gradient or a pH gradient?

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