Give the Order (1^st to Last)in Which the Following Amino

question 35

Multiple Choice

Give the order (1^st to last) in which the following amino acids would be eluted with a buffer of pH = 4 from a column containing a cationic-exchange resin (Dowex 50) : Arg (pI = 10.8) ,Ser (pI = 5.7) ,Asp (pI = 2.8) and His (pI = 7.6) .

• A)His,Ser,Asp,Arg
• B)Arg,His,Ser,Asp
• C)His,Ser,Arg,Asp
• D)Asp,Ser,His,Arg