Clothianidin, 1000µg/ml in MeOH, 1ml

2-Chloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

D12-Benzo[a]pyrene, 10.0 µg/ml, Acetonitrile, 10

Sodium perfluoro-1-nonanesulfonate, 1.2ml x 50ug/ml, methanol