D3-Ofloxacin, 100 µg/ml, Acetonitrile, 1ml

17 alpha(H),21 alpha(H)-Hopane, 50µg/mL in Isooctane, 1ml

Benzo[k]fluoranthene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 93952-01-3

Pyrazophos, 100 µg/ml, Methanol, 1ml