Agilent Technologies 8453 Operator's Manual page 492

10
Using the ChemStation Reports
Quantitative Results
ISTD% produces a report of the relative amount of each substance as a
percentage of the injected sample. The use of an internal standard in both the
sample and the calibration mixture eliminates the need to know and control
the volume of sample injected. This also corrects for any variation in
instrument performance between runs.
218 Understanding Your Agilent ChemStation