Fermentation standard Mix, in Water, 1ml

d2 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Osooctane, 1ml

Tri-n-butylphosphate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 126-73-8

Methyl methacrylate,1000 µg/mL,MeOH,1mL,