For example, in addition to water, {HEAD ~ a substrate solution} may also contain {TAIL ~ a cosolvent} such as dimethyl formamide, dimethylsulfonate, methanol or ethanol, typically in a range of 1% 10%  
contain
For example , in addition to water , { HEAD ~ a substrate solution } may also contain { TAIL ~ a cosolvent } such as dimethyl formamide , dimethylsulfonate , methanol or ethanol , typically in a range of 1 % 10 %
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH