The sorbates will be desorbed when the sampler is exposed to the fluid to provide a check on the apparent duration of the exposure and {HEAD ~ a correction} to {TAIL ~ the calculation} of analyte concentration in the fluid that results from desorption and reverse diffusion 
to
The sorbates will be desorbed when the sampler is exposed to the fluid to provide a check on the apparent duration of the exposure and { HEAD ~ a correction } to { TAIL ~ the calculation } of analyte concentration in the fluid that results from desorption and reverse diffusion
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH