Mass-Labelled PCB Internal/Recovery Standards, 1.2ml, nonane

Ofloxacin, 100µg/ml in Acetonitrile, 5ml

Tri-p-tolylphosphate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 78-32-0

Cycloate, 250mg