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Ethanolamines and Alkylamines (Phosphoric Acid + Acetonitorile)

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 : 50μL
1. Monoethanolamine 10mg/L
2. Diethanolamine 10mg/L
3. Triethanolamine 10mg/L
4. NH4+ 5mg/L
5. Methylamine 5mg/L
6. Dimethylamine 5mg/L
7. Trimethylamine 20mg/L




Column : Shodex IC YK-421 (4.6mmI.D. x 125mm)
Eluent : 4mM H3PO4 aq./CH3CN=95/5
Flow rate : 1.0mL/min
Detector : Non-suppressed coductivity
Column temp. : 25°C