The method can also determine {HEAD ~ calibration coefficients} for {TAIL ~ unknown calibration standards} by extracting the calibration coefficients from the optimized models 
for
The method can also determine { HEAD ~ calibration coefficients } for { TAIL ~ unknown calibration standards } by extracting the calibration coefficients from the optimized models
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH