Additional Internal Standard Solution, 1.2ml, toluene

Perfluorononanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 375-95-1

n-Octylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1795-15-9

Dichlorofluoromethane