The use of colloidal metal labels in {HEAD ~ a resolubilizable form} provides extremely rapid kinetics of {TAIL ~ labeling} 
The use of colloidal metal labels in { HEAD ~ a resolubilizable form } provides extremely rapid kinetics of { TAIL ~ labeling }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL