Wheat flour - Deoxynivalenol, 877µg/kg, 55g

2,3,3',4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

5-Nitro-o-toluidine

Hexahydro-1,3,5-tris(hydroxyethyl)triazine