Research Article
Spectrum-Effect Relationship between HPLC Fingerprints and Antioxidant Activity of Yangyin Tongnao Prescription
Table 5
The content of each group sample.
| Compounds | Standard curve (R2) | The content of each group sample (mg/mL) | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Vanillic acid | Y = 1 × 107X − 7.89 × 104 (R2 = 0.999) | 0.059 | 0.056 | 0.048 | 0.069 | 0.059 | 0.068 | 0.054 | 0.064 | 0.063 | Puerarin | Y = 1 × 107X − 1.30 × 104 (R2 = 0.999) | 2.397 | 2.230 | 1.940 | 2.458 | 2.071 | 2.460 | 1.807 | 2.198 | 2.182 | Ferulic acid | Y = 3 × 107X + 6.59 × 104 (R2 = 0.998) | 0.024 | 0.021 | 0.018 | 0.028 | 0.013 | 0.026 | 0.017 | 0.022 | 0.025 | Daidzein | Y = 8 × 106X + 9.69 × 104 (R2 = 0.998) | 0.124 | 0.130 | 0.124 | 0.116 | 0.106 | 0.130 | 0.043 | 0.064 | 0.086 | Formononetin | Y = 2 × 106X + 1.63 × 104 (R2 = 0.999) | 0.155 | 0.163 | 0.162 | 0.159 | 0.159 | 0.158 | 0.158 | 0.157 | 0.155 |
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R2 is the square of the correlation coefficient, which can judge the fitting degree of the linear regression line.
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