Matrix Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-8280MSS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 675388 Azinphos-ethyl, 100 µg/ml, Acetonitrile, 10ml Price on request 0235.16-K-T Pyrene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 129-00-0 Price on request 94216 Pesticide/Biphenyl Standard Price on request