The output signals from transducer are then used by data processing unit to compute the concentrations of propane, n butane gases and {HEAD ~ C5 + gases} in {TAIL ~ the sample} 
in
The output signals from transducer are then used by data processing unit to compute the concentrations of propane , n butane gases and { HEAD ~ C5 + gases } in { TAIL ~ the sample }
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 HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL