Atrazine-d5 (ethyl-d5),1000 µg/mL,acetonitrile,1mL,

Valsartan-d8 (Valine-d8),100 µg/mL,MeOH,1mL,

Anions Mix A

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