3-Chlorobenzo trichloride,1000 µg/mL,isooctane,1mL,

Perfluorobutyric acid, sodium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2218-54-4

Benzo[a]pyrene D12, 10µg/mL in Cyclohexane, 10ml

g-HCH(Lindane) (13C6,99%)100µg/mL in Nonane, 1,2ml