Thus, the visible laser radiation is used to facilitate the detection of ambient NO and NO from NO2 by REMPI and to discriminate {HEAD ~ these species} from {TAIL ~ more complex nitrocompound analytes} 
from
Thus , the visible laser radiation is used to facilitate the detection of ambient NO and NO from NO2 by REMPI and to discriminate { HEAD ~ these species } from { TAIL ~ more complex nitrocompound analytes }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL