2,4-DB-methyl ester, 10.0 µg/ml, Ethyl acetate,

2,3,3',4,4',6-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL,

Perfluoro-1-octanesulfonamide , 50µg/ml in Isopropanol, 1,2ml

2,4,4-Trichlorobiphenyl (BZ-28)