Mepanipyrim, 100 µg/ml, Acetonitrile, 1ml

2,3,4,5,6-Pentachlorophenol-13C6, 1000µg/ml in Isopropanol, 1ml

trans-Nonachlor, 100 µg/ml, Acetonitrile, 1ml

Perfluoro-n-[1,2-13C2]dodecanoic acid, 1.2ml x 50ug/ml, methanol