Monovalent and Divalent Cation Standards (1)
Monovalent and divalent cation standards were analyzed using IC YK-421.
Sample : 20?L
1. Li+ 2mg/L
2. Na+ 10mg/L
3. NH4+ 10mg/L
4. K+ 20mg/L
5. Ca2+ 20mg/L
6. Mg2+ 10mg/L
Column : Shodex IC YK-421 (4.6mmI.D. x 125mm) Eluent : 5mM Tartaric acid + 1mM Dipicolinic acid + 1.5g/L Boric acid aq. Flow rate : 1.0mL/min Detector : Non-suppressed conductivity Column temp. : 40°C