Study on the Effect of Deep Eutectic Solvent Liquid Phase Microextraction on Quality Standard, Antitussive, and Expectorant of Sangbaipi Decoction

<div>HPLC chromatogram: (a) mixed reference substance; (b) test substance; 1- palmatine; 2- berberine; 3- baicalein; and 4- wogonin.</div>

Journal of Analytical Methods in Chemistry

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Figure 2: Study on the Effect of Deep Eutectic Solvent Liquid Phase Microextraction on Quality Standard, Antitussive, and Expectorant of Sangbaipi Decoction 

Figure 2 | Study on the Effect of Deep Eutectic Solvent Liquid Phase Microextraction on Quality Standard, Antitussive, and Expectorant of Sangbaipi Decoction 