Thermo Fisher, 046070, Dionex™ Combined Six Cation Standard

Dionex™ Combined Six Cation Standard II is a ready-to-use multi-ion reference solution for routine cation analysis by ion chromatography. The 50 mL standard contains lithium, sodium, ammonium, potassium, magnesium and calcium at defined concentrations of 50, 200, 250, 500, 250 and 500 mg/L, respectively. It is suitable for calibration and performance checks with common Dionex cation-exchange columns including IonPac CS12, CS12A, CS14, CS15 and CS16 chemistries. The standard is prepared from high-purity reagent-grade chemicals and purified water, is NIST traceable and is supplied with a certificate of analysis. Using a combined standard reduces the number of individual solutions required for routine calibration and helps improve consistency across multi-cation methods. Dilutions can be prepared when lower calibration levels are needed for the validated analytical range. Because all six ions are present in one solution, analysts can prepare mixed calibration levels with fewer pipetting steps than when combining separate stock standards.