Prallethrin (mix of isomers), 1,000 µg/mL
Supplier Page from Spex CertiPrep for Prallethrin (mix of isomers), 1,000 µg/mL
Aluminum, 1,000 µg/mL, for AA and ICP, 500 mL from Spex CertiPrep
Inhalation Metal Mix for Cannabis Metal Analysis from Spex CertiPrep
Nitrite-Nitrogen Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm), 125 mL from Spex CertiPrep
Phosphate-Phosphorus Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm), 125 mL from Spex CertiPrep