A Green and Efficient Method for the Preconcentration and Determination of Gallic Acid, Bergenin, Quercitrin, and Embelin from Ardisia japonica Using Nononic Surfactant Genapol X-080 as the Extraction Solvent

Figure 3

Effect of some parameters of ultrasonic assisted micellar extraction on the extraction effect of 4 components: (a) type of surfactant; (b) Genapol X-080 concentration (%, v/v); (c) ultrasonic time (min); (d) ultrasonic power (%). 1, gallic acid; 2, bergenin; 3, quercitrin; 4, embelin.

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