Methamidophos, 100 µg/ml, Ethyl acetate, 5ml

4-Chlorophenol-2,3,5,6-d4, OD,1000 µg/mL,isopropanol,1mL,

Benzo[a]pyrene,400µg/mL,cyclohexane,0.5mL,

D8-Naphthalene, 100mg