D4-2-Chlorophenol, 100 µg/ml, Acetone, 1ml

2,2',4,4',6-Pentabromo-6'-hydroxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

Dimefuron, 100 µg/ml, Acetonitrile, 5ml

5'-Fluoro-2,3,3',4,4',5-hexachlorobiphenyl,100 µg/mL,isooctane,1mL,