EPA Method 525 Internals & Surrogates

Levamisole hydrochloride,1000 µg base/mL,MeOH,1mL,

d2 C20 Triaromatic Sterane, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 205529-79-9

beta-D-Lactose