IC YS-50 can use the eluent adding acetonitrile (up to 50 %). Adding acetonitrile can weaken hydrophobic interaction, and therefore quicken the elution of highly hydrophobic cations.
Note: Not every organic solvent can be used. (Methanol is unusable.)


Sample : 10 μL
1. Li⁺ 2 mg/L
2. Na⁺ 10 mg/L
3. NH₄⁺ 10 mg/L
4. K⁺ 20 mg/L
5. Mg²⁺ 10 mg/L
6. Ca²⁺ 20 mg/L

Column       : Shodex IC YS-50 (4.6 mm I.D. x 125 mm) 
Flow rate    : 1.0 mL/min
Detector     : Non-suppressed conductivity
Column temp. : 40 °C