Mass-Labelled PCDF/PCB Syringe Spike, 1.2ml, nonane Back Catalog number: DFP-IS-A Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 2134.21-K-IO Tri-m-tolylphosphate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 563-04-2 Price on request LGCFOR0393.04 N-Desmethylvenlafaxine Hydrochloride, 10mg Price on request 0273.24-10MG Dibenzo[a,k]fluoranthene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 84030-79-5 Price on request