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Effect of Crown Ethers (YS-50)

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Monovalent and divalent cations were analyzed using
IC YS-50.
18-Crown 6- Ether
will make a complex with cations, whose complex building depends on the kind of
cations. Therefore, adding 18-Crown-6-Ether is able to control the elusion of
cations and improve the separation of Na+ and NH4+.

Sample : 10?L

1. Li+ 2mg/L

2. Na+ 10mg/L

3. NH4+ 10mg/L

4. K+ 20mg/L

5. Mg2+ 10mg/L

6. Ca2+ 20mg/L

Column : Shodex IC YS-50 (4.6mmID*125mm) 
Eluent : 4mM Methanesulfonic acid + 18-Crown 6-ether aq.
Flow rate : 1.0mL/min
Detector : Non-suppressed conductivity
Column temp. : 40°C