Determine solution concentration (μg/mL) of each monomer derivative in the sample, C s, and average
media blank, Wb, from calibration graph (step 8.c.). Sum the responses of all other confirmed peaks
in the chromatogram that elute later than the monomer peak. Read solution concentration,s C(μg/mL),
from calibration graph, and report as oligomer diisocyanate-tryptamine derivative.