Ofloxacin D3 hydrochloride, certified, 10mg

Mass-Labelled PCDD/PCDF Solution Mixture, 1.2ml, nonane

2,3,7,8-Tetrabromo[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Benzo[b]fluoranthene, 10.0 µg/ml, Acetonitrile,