The method 1, wherein {TAIL ~ the one or more purified polypeptides} are immobilized to {HEAD ~ a solid support} 
The method 1 , wherein { TAIL ~ the one or more purified polypeptides } are immobilized to { HEAD ~ a solid support }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD