4-Fluoro-3-phenoxybenzoic acid, 100µg/ml in MeOH, 5ml

2,3',4,5,5'-Pentachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

Ethanol standard in serum,1.5g/L,serum, 3mL

2,3,5,6-Tetrachlorobiphenyl (BZ-65)