Methoxychlor-d6 (dimethoxy-d6),100 µg/mL,MeOH,1mL

γ-1,2,5,6,9,10-Hexabromo[13C12]cyclododecane, 1.2ml x 50ug/ml, toluene

1-Bromonaphthalene

Bensulfuron-methyl, 100 µg/ml, Acetonitrile, 1ml