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Monovalent and Divalent Cation Standards (7) (Eluent Containing Acetonitrile)

 

IC YS-50 can use the eluent adding acetonitrile (up to 30%). 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 : 10micro-L
1. Li+ 2ppm
2. Na+ 10ppm
3. NH4+ 10ppm
4. K+ 20ppm
5. Mg2+ 10ppm
6. Ca2+ 20ppm

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