By removing the liquid component one obtains {HEAD ~ the partially reduced GO}, which can be {TAIL ~ further heat} treated to produce fully reduced RGO 
By removing the liquid component one obtains { HEAD ~ the partially reduced GO } , which can be { TAIL ~ further heat } treated to produce fully reduced RGO
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH