EPA Method 550 Analytes

Fortification sol.,2000ug/ml in MeOH,1ml

Diethyleneglycol-monobutylether, 1000µg/ml in MeOH

n-Tridecane-d28, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 121578-12-9