ICP Wavelength Calibration Standard

EPA Method 533 Isotope Performance Standard PDS, 1.2ml, methanol

Perfluorooctane sulfonic acid , 50ug/ml, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1763-23-1

Benzyldimethyldodecylammonium chloride, 100 µg/ml,