Fermentation Standard, in water, 1ml

1,9-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20291-73-0

ICP-MS Verification Standard #2

Methylmalonic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 516-05-2