1,4-Dioxane-d8,1000 µg/mL,MeOH,1mL,

2,3,4,6,7,8-Hexachlorodibenzofuran , 1.2ml x 50ug/ml, nonane

Diphenyl-p-tolyl phosphate-d7 (p-tolyl-d7),100 µg/mL,isooctane,1mL,

(-)-Nicotine, 100 µg/ml, Methanol, 1ml