Papain
Papain was analyzed using IEC 
SP-825 (a column for strong cation exchange chromatography). Papain is a polypeptide chain of MW 23,406 and 
pI 8.75. It is very stable protelytic enzyme. It is used as the reagent for the study of structure of proteins and also for industrial use.

Sample : 
Papain
Column       : Shodex IEC SP-825 (8.0mmID*75mm)
Eluent       : (A); 20mM Sodium phosphate buffer(pH7.0)
               (B); (A) + 0.5M NaCl
               Linear gradient: 0min to 60min, (A) to (B)
Flow rate    : 1.0mL/min
Detector     : UV(280nm)
Column temp. : 25deg-C