EPA Method 531.1 - Performance Check Solution

D6-Dimethoate, 10mg

2,6-Dimethylphenanthrene , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17980-16-4

Ethidimuron, 100 µg/ml, Acetonitrile, 5ml