The individual wavelengths preferably will be directed to impinge on a photo diode array 21, which serves as {HEAD ~ means} to amplify {TAIL ~ the intensity} of individual wavelengths for accurate analysis 
to amplify
The individual wavelengths preferably will be directed to impinge on a photo diode array 21 , which serves as { HEAD ~ means } to amplify { TAIL ~ the intensity } of individual wavelengths for accurate analysis
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH