Calibrate daily with at least six working standards from below the LOD to 10 times the LOQ. If necessary,
additional standards may be added to extend the calibration curve.
a. Add known amounts of analytes to carbon disulfide solvent in 10-m L volumetric flasks and dilute to
the mark. Prepare additional standards by serial dilution in 10-mL volumetric flasks.
b. Analyze together with samples and blanks (steps 11 through 12).
c. Prepare calibration graph (peak area of analyte vs. µg analyte per sam ple)