Benzo(b)fluoranthene-D12, 10µg/mL in CY, 1ml

Mass-Labelled PCB Congener Solution/Mixture, 5µg/ml in Nonane, 1,2ml

D6-Metazachlor, 100 µg/ml, Acetonitrile, 1ml

2,5-Dinitrotoluene, 100µg/ml in MeOH, 5ml