Fenamiphos-sulfoxide, 100 µg/ml, Toluene, 5ml

Ethanol standard in water,1.3g/L,water, 3mL

2,2',4,4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Parathion-ethyl, 100μg/mL in Acetonitrile, 1ml