EPA Method 507 - Internal Standard

3,4,4'-Trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 38444-90-5

Ethanol standard in serum,1.1g/L,serum, 3mL

O,O-Dimethyldithiophosphate, sodium salt, 5mg