EPA Method 8240A Calibration Check Compounds

2-Nitrofluorene-d9, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 128008-87-7

iso-Butyl n-pentyl phthalate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no.

Halfenprox, 10mg