EPA Method 8315 Calibration Mix #1

n-Pentyl 4-hydroxybenzoate-d11, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1216496-15-9

Roquefortine C, 100µg/mL, Solvent-dried down, Unit 1mL, # of units-1, Cas.no. 58735-64-1

D8-4,4'-DDE, 10mg