Surrogate Spiking Solution, 1.2ml, nonane

18ß(H)-Olean-12(13)-ene, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 471-68-1

Trietazine, 100 µg/ml, Acetonitrile, 5ml

3ß,17 alpha(H),21 alpha(H)-3-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no.