EPA Method 525 - Fortification Solution

4-n-Nonylphenol-2,3,5,6-d4-OD, 1000µg/mL, Solvent-acetone, Unit 5mL, # of units-1, Cas.no. 358730-95-7

Diethylene glycol

Endosulfan-sulfate, 100 µg/ml, Methanol, 1ml