Thus, typically and preferably, {HEAD ~ the method} involves cleaving the derivatized molecule from {TAIL ~ the linker functionalized support} at the site of the covalent attachment to the linker 
Thus , typically and preferably , { HEAD ~ the method } involves cleaving the derivatized molecule from { TAIL ~ the linker functionalized support } at the site of the covalent attachment to the linker
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH