2,2',3,6'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

Ethanol standard in water,3.0g/L,water, 1.5mL

(±)-Sotalol-d7 hydrochloride (isopropyl-d7),100 µg/mL,MeOH,1mL,

Grifolic Acid, 1mg