The method includes inactivating {TAIL ~ endogenous enzyme activities} using neutral organic solvents in conjunction with {HEAD ~ a matrix} having minimal background noise  
The method includes inactivating { TAIL ~ endogenous enzyme activities } using neutral organic solvents in conjunction with { HEAD ~ a matrix } having minimal background noise
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH