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In the present work, an asynchronous 3-zone simulated moving bed (SMB) has been constructed for the first time and used for the separation of vanillin and syringaldehyde with C18as stationary phase and ethanol/water=35/65 (v/v) as mobile phase at 25°C. The linear model was first used to describe the isotherms of the two compounds. The Henry constants were determined by frontal analysis and the diffusion...
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