Acid selection depends on the sample type, instrument, and analysis conditions. Cation standards were analyzed using IC YS-50 with 4 mM methanesulfonic acid, sulfuric acid, nitric acid, and phosphoric acid as the eluent are shown.
Sample: 10μL
1. Li+ 2mg/L
2. Na+ 10mg/L
3. NH4+ 10mg/L
4. K+ 20mg/L
5. Mg2+ 10mg/L
6. Ca2+ 20mg/L
|
Eluent
|
Conductivity
(μS/cm) |
|---|---|
| 4mM Sulfuric acid aq. |
2906
|
| 4mM Nitric acid aq. |
1926
|
| 4mM Methanesulfonic acid aq. |
1733
|
| 4mM Phosphoric acid aq. |
1237
|
Column : Shodex IC YS-50 (4.6mmI.D. x 125mm) Flow rate : 1.0mL/min Detector : Non-suppressed conductivity Column temp. : 40°C
