Recovery Standard Solution, 1.2ml, nonane Back Catalog number: EPA-8290RSS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 679173 13C2,15N2-Metronidazole, 10mg Price on request 92789 EPA Method 8081A Pesticide Standard A Price on request 9285.10-100-ME Stavudine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3056-17-5 Price on request