Question

Which method of refining will you suggest for an element in which impurities present have chemical properties close to the properties of that elements?

Answer 1

the statioary phase is selected in such a way that the impurities are more stongly adsorbed or are more soluble In the stationaary phase than component to be purified thus ,when the column is extracted , the impurities will be retained by the statioary phase while the pure component is easily eluted.