Hexavalent Chromium (Cr 6+)

Acetaminophen, 100 µg/ml, Acetonitrile, 1ml

Antimony (Sb), 1000µg/ml in 2%-HNO3/Water, 100ml

1,3-Dimethyl-5-ethylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 934-74-7