Bentazone-8-hydroxy, 10.0 µg/ml, Acetonitrile, 5

4-Methyltridecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 26730-12-1

Hexavalent Chromium (Cr 6+)

Hexazinone, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 51235-04-2