Using the FIG 1 to further explain the art, explosive 50 is subjected to a gas separation and {TAIL ~ identification technique} such as gas chromatography , to identify {HEAD ~ all components} in its headspace scent 
Using the FIG 1 to further explain the art , explosive 50 is subjected to a gas separation and { TAIL ~ identification technique } such as gas chromatography , to identify { HEAD ~ all components } in its headspace scent
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH