Internal Standard Spiking Solution, 1.2ml, nonane

D3-Ketoprofen, 100 µg/ml, Acetonitrile, 1ml

5 alpha(H)-Cholestan-3ß-ol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 80-97-7

2,4,5-T-methyl ester, 10 µg/ml, Acetonitrile, 10