Benzo(b)fluoranthene-d12, 10µg/ml in CY, 1ml

4-Chloro-3-nitrobenzotrifluoride

Paraoxon-methyl, 100 µg/ml, Acetonitrile, 5ml

2,2',3,3',5,6'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL,