Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml

Benzo[a]tetracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 226-88-0

Quinapril hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 82586-55-8

Cadusafos, 100 µg/ml, Acetonitrile, 5ml