Ammonia as (NH4+)

1,2,3,4-Tetramethylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 488-23-3

Butachlor OA, 10mg

Volatile Mix A1, 200µg/ml in MeOH, 1ml