2,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml

(Z)-Metominostrobin, 10 µg/ml, Acetonitrile, 1ml

Caffeine,100 µg/mL,MeOH,1mL,

Camphechlor (Toxaphene), 10.0 µg/ml, Ethyl acetat