Simultaneous Quantification of Ten Active Components in Traditional Chinese Formula Sijunzi Decoction Using a UPLC-PDA Method

Table 1

The linear regression data, LODs, and LOQs of ten compounds.

Components	Regression equations	𝑅^2	Linear range; (μg/mL)	LODs; (μg/mL)	LOQs; (μg/mL)
Ginsenoside Rg1	𝑦=2123.1𝑥+1493.3	1	4.68–300.00	0.07	0.23
Ginsenoside Re	𝑦=1701.3𝑥+2520.7	0.9998	4.72–302.10	0.07	0.23
Ginsenoside Rb1	𝑦=1465𝑥+2077.4	0.9998	4.68–300.00	0.06	0.20
Liquiritin	𝑦=4334.7𝑥+1378.8	0.9998	1.41–90.30	0.02	0.07
Liquiritigenin	𝑦=7817.1𝑥+3469.8	0.9998	1.36–87.00	0.02	0.07
Glycyrrhizic acid	𝑦=3181.9𝑥+1888	0.9998	1.72–110.00	0.03	0.10
Atractylenolide III	𝑦=34419𝑥+6432.6	0.9999	0.92–59.00	0.01	0.03
Atractylenolide I	𝑦=18610𝑥+8178.9	0.9998	1.12–71.40	0.02	0.07
Atractylenolide II	𝑦=40016𝑥+9753.9	0.9999	0.79–50.60	0.01	0.03
Pachymic acid	𝑦=2060.1𝑥+3937.9	0.9996	3.13–200.00	0.05	0.16

𝑦=𝐴𝑥+𝐵; 𝑦 is peak area; 𝑥 is concentration of the analytes (μg/mL); 𝑟 is the correlation coefficient of the equation.