{HEAD ~ The absence} of a solid phase separation step eliminates {TAIL ~ false positive results} and increases throughput 
eliminates
{ HEAD ~ The absence } of a solid phase separation step eliminates { TAIL ~ false positive results } and increases throughput
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH