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Performance comparison of different wave band choose of calibration models.
| Medicinal Components | Performances of RMSEC and r | Wave Band | |
|---|---|---|---|
| 4000–10,000 cm−1 | 4000–7500 cm−1 | ||
| Echinacoside | RMSEC | 27.9 | 136.0 |
| r | 0.9813 | 0.3431 | |
| Verbascoside | RMSEC | 6.69 | 11.00 |
| r | 0.9629 | 0.8956 | |
| Mannitol | RMSEC | 3.05 | 12.5 |
| r | 0.9747 | 0.4029 | |
| Sucrose | RMSEC | 1.21 | 2.63 |
| r | 0.9584 | 0.786 | |
| Glucose | RMSEC | 1.22 | 2.16 |
| r | 0.9426 | 0.8074 | |
| Fructose | RMSEC | 1.57 | 6.75 |
| r | 0.99 | 0.7951 | |
