Heptachlor-exo-epoxide, 100 µg/ml, Acetonitrile,

18ß(H)-Olean-12(13)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 471-68-1

Hexamethylcyclotrisiloxane, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 541-05-9

Ethanol standard in serum,0.3g/L,serum, 1.5mL