Sulprofos, 100 µg/ml, Acetonitrile, 5ml

1-Chloro-1,1-difluoroethane, 20mg/mL in MeOH, 1ml

a-1,2,3,4,5,6-Hexachlorocyclohexane, 1.2mL x 100ug/mL, nonane

1,2,3,8,9-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,