Effects of sample injection volume when Asahipak NH2P-50 4E is used is shown. When making sample solution to be injected, sample should be dissolved in a solvent whose composition is as close as the eluent, preferably in the eluent. When 75 % acetonitrile aqueous solution is used for the eluent and a sample can be dissolved only in aqueous solution (or 50 v/v% ethanol, etc.), injection volume should be as small as possible.
Sample : 20 μg each in purified water
1. Fructose 2. Glucose 3. Sucrose 4. Lactose 5. Maltose
Column : Shodex Asahipak NH2P-50 4E (4.6 mm I.D. x 250 mm) Eluent : CH3CN/H2O=75/25 Flow rate : 1.0 mL/min Detector : RI Column temp. : 25 °C
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