means for supporting a sample in a position to be illuminated by {TAIL ~ the infrared radiation} in {HEAD ~ either the transmission mode} or the reflectance mode 
means for supporting a sample in a position to be illuminated by { TAIL ~ the infrared radiation } in { HEAD ~ either the transmission mode } or the reflectance mode
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH