Chlormequat chloride, 100 µg/ml, Water, 1ml

Hexavalent Chromium (Cr +6)

N-Nitrosomorpholine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 59-89-2

Internal Standard Solution, 1.2ml, nonane