Sulfate (SO42-) Back Catalog number: 50805 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 51064 ASTM D-4815 Calibration Mix #1 Price on request 11206.12-50-ME 1H,1H,2H,2H-Perfluoro-n-octyl methacrylate,50 µg/mL,MeOH,1mL, Price on request M2PFOA Perfluoro-n-[1,2-13C2]octanoic acid, 50µg/ml in MeOH, 1,2ml Price on request