Range calibration curve EPA 8270D

[frage]

On the one I have a little curiosity, I would like to know what the range that you used to calibrate the metdo EPA 8270D for PAH?
because I build from 0.1 ppm to 8 ppm and add the internal standard to 4 ppm.
This is because I have an abundance of the standard of 1 million!
Thank you

Buon Natale

[gpronger]

Natale,

Your calibration range is a bit on the narrow side (80X) but not that far off; what I see is labs calibrating from around 10PPM to 120PPM or 160PPM.

You're calibrating lower than many, but I would presume that you have need to report as low as you are calibrating.

Greg