Pymetrozine, 100 µg/ml, Acetonitrile, 5ml

n-Tridecane, ?13C: -33.47, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 629-50-5

Hexavalent Chromium (Cr +6)

3,3-Dimethylpentane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 562-49-2