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Ethanolamines and Alkylamines

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Ethanolamines and alkylamines were analyzed using IC YK-421. Sharp peaks were obtained during the analysis of ethanolamines, but during the analysis of alkylamines, peaks with a little tailing were observed.

Sample :

1. Monoethanolamine 10mg/L

2. Diethanolamine 10mg/L

3. Triethanolamine 10mg/L

4. NH4+ 5mg/L

5. Methylamine 5mg/L

7. Dimethylamine 5mg/L

8. Trimethylamine 20mg/L

Column : Shodex IC YK-421 (4.6mmID*125mm)
Eluent : 4mM H3PO4 aq./CH3CN=95/5
Flow rate : 1.0mL/min
Detector : Shodex CD
Column temp. : 25°C