Sample : Mineral water, Tap water (Water)
Mineral water
|
Tap water
|
|
1. Na+ |
6.7ppm
|
7.3ppm
|
2. K+ |
0.8ppm
|
1.3ppm
|
3. Ca2+ |
24.8ppm
|
3.6ppm
|
4. Mg2+ |
71.9ppm
|
12.0ppm
|
Column : Shodex IC YS-50 (4.6mmID*125mm) Eluent : 4mM Methanesulfonic acid aq. Flow rate : 1.0mL/min Detector : Suppressed conductivity Column temp. : 40°C