Quantitative Analysis of the Multicomponent and Spectrum–Effect Correlation of the Antispasmodic Activity of Shaoyao-Gancao Decoction

Table 4

Linear regression, precision, repeatability, stability, and recovery for 15 components in SGD.

Compound	Regression equation	Correlation coefficient (r)	Linear range (mg/mL)	Precision (RSD, %) n = 5	Repeatability (RSD, %) n = 6	Stability (RSD, %) n = 6	Recovery (RSD, %) n = 6
X1: oxypaeoniflorin	Y = 1233273.12X + 46449.80	0.9944	0.056–0.559	0.9	2.0	0.5	96.8 ± 0.4
X2: catechin	Y = 213488.20X + 9856.90	0.9983	0.126–1.255	2.4	0.4	2.5	96.8 ± 1.8
X3: albiflorin	Y = 31301.02X + 3371.21	0.9995	0.371–3.711	2.8	1.8	2.8	97.0 ± 1.5
X4: paeoniflorin	Y = 353199.09X + 4111.98	0.9999	0.512–5.117	3.6	0.7	2.5	99.3 ± 1.4
X5: liquiritin	Y = 443973.23 X−114367.63	0.9985	0.543–5.430	1.2	1.5	0.8	98.7 ± 1.2
X6: galloypaeoniflorin	Y = 931967.24X + 12146.77	0.9990	0.050–0.494	2.9	0.2	1.3	109.9 ± 1.7
X7: 1,2,3,4,6-O-pentagalloylglucose	Y = 3542609.33X + 9102.26	1.0000	0.069–0.695	1.0	1.4	0.4	101.8 ± 1.9
X8: ononin	Y = 937109.60X + 2791.93	1.0000	0.069–0.692	0.6	3.1	0.3	101.2 ± 0.5
X9: isoliquiritin	Y = 1557077.22X + 3899.99	0.9999	0.061–0.611	0.8	2.1	0.7	108.7 ± 0.5
X10: licochalcone B	Y = 1291329.69X + 338.63	0.9999	0.006–0.063	0.8	2.9	0.4	93.8 ± 0.5
X11: liquirtigenin	Y = 132434.69X–1198.43	0.9998	0.100–1.000	0.5	1.7	0.3	107.3 ± 0.4
X12: benzoylpaeoniflorin	Y = 1537913.99 X + 1164.36	1.0000	0.009–0.093	2.5	1.5	2.7	104.1 ± 1.1
X16: glycyrrhizic acid	Y = 858537.93X + 3267.07	0.9999	0.389–3.890	0.7	0.4	0.4	97.3 ± 0.1
X18: licochalcone A	Y = 137500.90X–5234.42	0.9979	0.063–0.629	0.4	2.1	0.3	105.4 ± 0.6
X19: glabridin	Y = 563254.16X + 431.74	0.9999	0.072–0.720	1.1	3.9	0.6	106.9 ± 0.5