Heptachlor-exo-epoxide, 100 µg/ml, Ethyl acetate,

Theobromine,100 µg/mL,MeOH,1mL,

Nitrogen Calibration Set-High Boiling Solvents Units: 1x1mL ampoules or 10mL screw-capped bottle Nitrogen introduced using Carbazole Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4141-0 Blank S-4141-03

2,2',3,4,4',5'-Hexachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 35065-28-2