EPA Method 525 - Fortification Solution

1,2,3,6,7-Pentachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane

PSA-C18-Mix 4

1,1,4-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7094-27-1