HPLC Quantitative Analysis of Main Stilbenes and Flavones in Different Parts of Matteuccia struthiopteris

Table 1

Calibration curves, detection limits, and quantification limits of the compounds.

Compound no.	Calibration equation^a	Linear range (μg/mL)	𝑅^2b	LOD^c (μg/mL)	LOQ^d (μg/mL)
1	𝑦=14800𝑥−21814	8.66–4.33 × 10^2	0.9998	0.07	0.23
2	𝑦=14947𝑥−26564	8.18–4.09 × 10^2	0.9997	0.07	0.22
3	𝑦=10685𝑥+56.56	0.41–20.32	0.9958	0.09	0.32
4	𝑦=39250𝑥−14643	0.85–42.72	0.9991	0.02	0.06
5	𝑦=16973𝑥−3358.4	0.40–20.16	0.9993	0.08	0.27
6	𝑦=9545.1𝑥−1438.5	1.43–71.60	0.9998	0.10	0.33

^a𝑦: peak area at 295 nm; 𝑥: concentration of the compounds (μg/mL).
^b𝑅²: correlation coefficient for 6 data points in the calibration curves (n = 2).
^cLOD: limit of detection (S/N = 3).
^dLOQ: limit of quantification (S/N = 10).