Fenchlorphos-oxon, 100 µg/ml, Acetonitrile, 1ml

4,4'-Sulfonylbis(2,6-dibromophenol), techn.

5-Nitro-o-toluidine

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