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Methylxantines (1) (DS-613)

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Methylxantines were analyzed using RSpak DS-613, a column for reversed phase chromatography.


Sample : 0.02% each, 6μL
1. Xanthine
2. Theobromine
3. Theophyline
4. Caffeine


Column       : Shodex RSpak DS-613 (6.0mmI.D. x 150mm)
Eluent       : H2O/CH3CN=88/12
Flow rate    : 1.0mL/min
Detector     : UV(254nm)
Column temp. : 40°C

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