D5-PCB 116, 10.0 µg/ml, Isooctane, 1ml

d2 C27 alpha alpha alpha (20R)-Cholestane, 10µg/mL in Isooctane, 1ml

Tris-p-tolyl phosphate-d21,100 µg/mL,isooctane,1mL,

cis-(13C10)Nonachlor, 1.2mL x 100ug/mL, nonane