Thus, {TAIL ~ identification} of {HEAD ~ peaks} can be accomplished more reliably, and unidentifiable components can be either totally eliminated or their number can be significantly reduced 
Thus , { TAIL ~ identification } of { HEAD ~ peaks } can be accomplished more reliably , and unidentifiable components can be either totally eliminated or their number can be significantly reduced
OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH