Seven formulas in a multi symptom cold formula were simultaneously analyzed by a polymer-based reversed phase chromatography column, ODP2 HP-4E.
Sample : 20 μg/mL each, 10 μL
1. Dihydrocodeine phosphate
3. Aspirin, Acetylsalicylic acid
5. Salicylic acid
6. Bromhexine hydrochloride
Column : Shodex ODP2 HP-4E (4.6 mm I.D. x 250 mm) Eluent : 0.1 % TFA aq./CH3CN=70/30 Flow rate : 0.4 mL/min Detector : UV (235 nm) Column temp. : 40 °C
Data courtesy of Katsuko Hara.MT Yutaka Komiyama.PhD,
Department of Clinical Sciences and Laboratory Medicine, Kansai Medical University.
Sample Name Index
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