Internal Standard Solution, 1.2ml, nonane Back Catalog number: EPA-23IS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 3337.12-100 Chlorfenson, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 80-33-1 Price on request 2822.8-50-ME n-Perfluorooctanoic acid, ammonium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3825-26-1 Price on request 672903 Rimsulfuron, 100mg Price on request