Method 429 Alternate Standard Stock Solution, 1.2ml, isooctane

Ethofumesate,100 µg/mL,MeOH,1mL,

Arochlor 1248 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 12672-29-6

Native PAH Solution/Mixture, 1.2ml, toluene