Anilazine, 10.0 µg/ml, Acetonitrile, 10ml

2,3,4,5-Tetrabromobenzoic acid [13C6 ring], 1.2ml x 50ug/ml, methanol

N-(2-Hydroxyethyl)-N-methylperfluorooctane sulfonamide,50 µg/mL,acetonitrile,1mL,

2,2’,3,3’,4,4’-Hexachlorobiphenyl (128)