Asahipak NH2P-50 4E was used to analyze betaine. Betaine (Trimethylglycine, or carboxylmethyl-trimethylammonium) is a dipole ion which bears cationic and anionic charges in its structure, found in sugar beets (Beta vulgaris), shrimps and crabs. Betaine is often used as a food additive and a moisturizer in cosmetics.
Sample : 20µL 0.1% Betaine (Trimethylglycine,
Columns : Shodex Asahipak NH2P-50 4E (4.6mmID*250mm)
Eluent : CH3CN/H2O=75/25
Flow rate : 1.0mL/min
Detector : Shodex RI
Column temp. : 40°C