Copper (Cu)

1H,1H,13H-Perfluorotridecan-1-ol, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 423-72-3

Tungsten (W)

Heptachlor-exo-epoxide, 100 µg/ml, Methanol, 1ml