Internal Standard Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-513ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 680804 Metolachlor, 10.0 µg/ml, Acetonitrile, 10ml Price on request 9907.2-K-ME N-Nitro-1,3-oxazolidin-2-one, 1000µg/mL, Solvent-methanol, Unit 1.1mL, # of units-1, Cas.no. Price on request 672881 Propham, 250mg Price on request