2,3,5,6-Tetrachlorophenol, 100 µg/ml, Methanol,

Fenitrothion, 10.0 µg/ml, Ethyl acetate, 10ml

Oxygenates Standard

2,3,3',4,4',5,5'-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane