Pentachlorophenol, 100 µg/ml, Acetonitrile, 1ml

o-Tolualdehyde-DNPH, 100µg/ml in Acetonitrile, 1ml

N-Ethyl-N-(2-hydroxyethyl)nitrosamine,1000 µg/mL,acetonitrile,1mL

Fluroxypyr-1-methylheptylester, 10 µg/ml, Ethyl a