1,1-Difluoroethane, 20mg/mL in MeOH, 1ml

Heptachlor endo-epoxide, 100 µg/ml, Methanol, 1m

Propetamphos, 100 µg/ml, Acetonitrile, 1ml

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