It is recommended that when your samples are high concentrations of protein or simply a very “sticky” protein, that immediately before you inject the sample, between runs, that you dip your capillary in CEwater.
It is further recommended that immediately after the separation, that you dip your capillary in CEwater. This will assist in removing any protein that will stick to the outside of the capillary walls and will be injected as a type of sample carry over.
