Ethylisopropylnitrosamine, 1000μg/ml in MeOH, 1ml

1,2,3,4,6,7,8-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Propiconazole, anal. std., 250mg

2,2',3,6'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,