Metazachlor OA, 10.0 µg/ml, Acetonitrile, 10ml

n-Hydrocarbon Standard (C5-C15), 2000µg/mL in MeOH, 1ml

1-/3-Nitrobenzo[a]pyrene, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 70021-99-7/70021-98-6

Gadolinium (Gd)