Butralin, 100 µg/ml, Ethyl acetate, 5ml

4-Methylphenol, 100 µg/ml, Acetonitrile, 1ml

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

Hexachlorobutadiene, 2000µg/ml in MeOH, 1ml