PCB 209, 100 µg/ml, Isooctane, 5ml

Sodium 1H,1H,2H,2H-perfluoro-1-[1,2-13C2]-octane sulfonate (6:2), 50µg/ml in MeOH, 1,2ml

Custom Mix of Deuterated Phthalates, 10mg/ml in Acetone, 10 x 1ml

4,4’-DDT