EPA Method 515.1 - Performance Check Solution

n-Undecane, ?13C: -26.11, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1120-21-4

Isopropyl benzene

Aldrin, 100 µg/ml, Ethyl acetate, 5ml