Cobalt, 1,000 µg/mL (1,000 ppm) for ICP-MS, 125 mL
Supplier Page from Spex CertiPrep for Cobalt, 1,000 µg/mL (1,000 ppm) for ICP-MS, 125 mL
Impurities Metal Mix for Cannabis Metal Analysis from Spex CertiPrep
Nitrogen-Phosphorus Pesticides Mix E, 200 µg/mL from Spex CertiPrep
Phosphate-Phosphorus Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm), 125 mL from Spex CertiPrep
Silver, 1,000 µg/mL, for AA and ICP, 500 mL from Spex CertiPrep