EPA Method 507 Analyte Mix #8 Back Catalog number: 94131 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA12631000AL Diflufenican, 100µg/mL in Acetonitrile, 1ml Price on request 9208.13-100-ME (S)-(+)-Ketamine hydrochloride, 100µg base/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 33795-24-3 Price on request 59571 Anions Mix Price on request