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Analysis of mineral water was performed using IC YS-50 (a column for cation chromatography). It turns out that many divalent cations is contained in mineral water. Sample : Mineral water, 10μL1. Na+2. NH4+3. K+4. Mg2+5. Ca2+
Column : Shodex IC YS-50 (4.6mmI.D. x 125mm)
Eluent : 4mM Methanesulfonic acid aq.
Flow rate : 1.0mL/min
Detector : Non-suppressed conductivity
Column temp. : 40°C