Atrazine-2-hydroxy, 10.0 µg/ml, Methanol, 10ml

1,2,3,4,6,7,9-Heptachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

n-Eicosane-d42

Haloperidol-D4, 0.1mg/ml in MeOH, 1ml