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

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+ 2 ppm
2. Na+ 10 ppm
3. NH4+ 10 ppm
4. K+ 20 ppm
5. Mg2+ 10 ppm
6. Ca2+ 20 ppm


 

Columns      : Shodex IC YS-50 (4.6 mm I.D. x 125 mm)  Shodex IC YK-421 (4.6 mm I.D. x 125 mm)
Eluent       : 4 mM Methanesulfonic acid aq.           5 mM Tartaric acid
                                                       + 1 mM Dipicolinic acid 
                                                       + 1.5 g/L Boric acid aq.
Flow rate    : 1.0 mL/min                              1.0 mL/min
Detector     : Non-suppressed conductivity             Non-suppressed conductivity
Column temp. : 40 °C                                  40 °C

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