2,4'-DDE, 100 µg/ml, Ethyl acetate, 5ml

EPA 528 rev. 1.0 Sample Fortification Solution 2 100µg/mL in acetone; unit: 1x5mL 2396.8 2,4-Dimethylphenol-3,5,6-d3 [93951-75-8]

Metoprolol-d7 hydrochloride (isopropyl-d7),1000 µg base/mL,MeOH,1mL

Irgarol-d9 (tert-butyl-d9),100 µg/mL,acetonitrile,1mL,