Potassium (K)

1,1,1-Trichloro-2,2-bis(4-chlorophenyl-d4)ethane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93952-18-2

2,3,3',4,5,5',6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,

N-Methyl(nitrosoamino)-ethanol,1000 µg/mL,acetonitrile,1mL,