Research Article
Rapid Geographical Origin Identification and Quality Assessment of Angelicae Sinensis Radix by FT-NIR Spectroscopy
Table 2
The results of methodology validation for HPLC analysis.
| | Analytes | Calibration curvesa | r2 | Linear range (μg/mL) | Precision (RSD, %, n = 6) | Repeatability (RSD, %, n = 6) | Stability (RSD, %, n = 8) | Recovery (mean, %, n = 9) |
| | Ferulic acid | y = 51125.819x – 11166.578 | 0.9999 | 0.5417–54.1728 | 0.23 | 1.36 | 0.58 | 99.10 | | Z-ligustilide | y = 23458.696x – 25427.266 | 0.9999 | 3.7418–374.1836 | 0.23 | 1.54 | 0.80 | 97.00 |
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ay is the value of peak area, and x is the value of the reference compound’s concentration (μg/mL).
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