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Monovalent and Divalent Cation Standards (6) (Comparison of YS-50 and YK-421)

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The six main cations can be separated using a newly developed column, IC YS-50. Comparing with the conventional column IC YK-421, the theoretical plate number of divalent cations becomes more than double and the separation of Na+ and NH4+ becomes about 1.2 times.

Sample :

1. Li+ 2ppm

2. Na+ 10ppm

3. NH4+ 10ppm

4. K+ 20ppm

5. Mg2+ 10ppm

6. Ca2+ 20ppm


 Columns : Shodex IC YS-50 (4.6mmID*125mm) vs. Shodex IC YK-421 (4.6mmID*125mm)
 Eluent : YS-50 (4mM Methanesulfonic acid aq.); YK-421 (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