Pethoxamid, 100 µg/ml, Acetonitrile, 5ml

N,N-dimethylperfluoro-1-octanesulfonamide , 1.2ml x 50ug/ml, methanol

4-n-Nonylphenol-di-ethoxylate, 100 µg/ml, Acetoni

Linuron, 100µg/ml in Acetonitrile, 5ml