0 0 votes Two monomeric His-tagged proteins of identical molecular weight are present in a solution. pIs of these two proteins are $5.6$ and $6.8$. Which one of the following techniques can be used to separate them? Denaturing polyacrylamide gel electrophoresis Size-exclusion chromatography Ion-exchange chromatography Nickel affinity chromatography Analytical Techniques gate2020 analytical-techniques biochemistry + – soujanyareddy13 2.7k points answer comment Share Follow 0 reply Please log in or register to add a comment.