Ammonia as (NH4+)

BTEX - Mix 6, 1000µg/ml in MeOH, 2ml

4,4'-Dihydroxybiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 92-88-6

MCPA-L-carnitine (Mixture of Diastereomers), 0,5mg