2,4-D, 100µg/ml in Acetonitrile, 5ml

Sodium 1H,1H,2H,2H-perfluoro-1-[1,2-13C2]-decane sulfonate (8:2), 50µg/ml in MeOH, 1,2ml

TDCP, 100µg/ml in Toluene, 1ml

Benzo(a)pyrene