EPA Method 552 Surrogate Standard Methyl Ester

1-n-Butylpyrene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 35980-18-8

n-Heptanal-PFBOA derivative, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no.

2,3',4',5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,