Research Article
Real-Time Release Testing of Herbal Extract Powder by Near-Infrared Spectroscopy considering the Uncertainty around Specification Limits
Table 4
The validation results of NIR determination of tanshinoneIIA.
| Theoretical concentration (%) | Mean calculated content (%) | Trueness | Precision | Relative bias (%) | Recovery (%) | Repeatability (%) | Intermediate precision (%) |
| 0.10 | −0.20 | −294.70 | −194.70 | 390.80 | 390.80 | 0.15 | −0.13 | −184.44 | −84.44 | 250.76 | 250.76 | 0.36 | 0.24 | −32.96 | 67.04 | 87.85 | 93.70 | 0.54 | 0.85 | 58.02 | 158.02 | 47.40 | 47.40 | 2.04 | 1.60 | −21.67 | 78.33 | 16.04 | 17.95 | 6.03 | 5.95 | −1.34 | 98.66 | 6.37 | 6.37 | 18.76 | 18.34 | −2.26 | 97.74 | 3.31 | 3.36 | 27.64 | 26.45 | −4.30 | 95.70 | 1.63 | 1.91 |
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