EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 82708 Appendix IX Semi-Volatiles Mix #13 Price on request 9466.8-K-ME (S)-Pregabalin, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 148553-50-8 Price on request 2833.6-50-ME 2H,3H-Perfluorohex-2-enoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 37759-76-5 Price on request