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

Table 1

Calibration curve, linear range, LOD, and LOQ of the investigated analytes.

Analytes	Calibration curve	Linear range (µg mL^−1)		LOD (µg mL^−1)	LOQ (µg mL^−1)
Gallic acid		0.4–50	0.999	0.013	0.04
Bergenin		4–500	0.9988	0.012	0.04
Quercitrin		1–50	0.9961	0.010	0.03
Embelin		4–250	0.9964	0.016	0.04