EPA Method 8240A Calibration Check Compounds

tert-Butyl ethyl ether + blank RFA, 15Wt%, Solvent-neat, Unit 10mL, # of units-2+1, Cas.no. 637-92-3

Lycopane, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 45316-02-7

Trimethoprim