PCB No. 169, 10µg/ml in Isooctane, 10ml

D12-Benzo[a]pyrene, 10.0 µg/ml, Acetonitrile, 1m

Ethion, 1000µg/ml in MeOH, 1ml

Fluorescein disodium salt dihydrate, 90%,neat,neat,100mg,