EPA Method 8060 QC Check Solution

trans-Pinic acid,50 µg/mL,MeOH,0.25mL,

7-Methyl-1-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6939-33-9

n-Dodecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 112-40-3