EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 58037 Rubidium (Rb) Price on request 72285 L-Valine Price on request 2796.18-10-AN ß-Zearalanol, 10 µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 42422-68-4 Price on request