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