Cycluron, 100 µg/ml, Acetonitrile, 1ml

4-tert-Octylphenol-13C6

Cyfluthrin, 10 µg/ml, Cyclohexane, 10ml

1,2,3,4,6-Pentachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene