Research Article
Study on the Processing Technology of Calamine Calcination by Near-Infrared Spectroscopy
Table 3
NIR models for determining ZnO content in calcined calamine.
| | Model | Spectral band (cm−1) | Pretreatment | RMSECV (%) | Validation set | Test set | Rank | | R2 (%) | RMSEV (%) | RPD | R2 (%) | RMSEP (%) | RPD |
| | 1 | 4601.6–4003.7 | SD | 2.81 | 94.93 | 3.09 | 4.52 | 97.75 | 1.89 | 6.44 | 8 | | 2 | 5446.3–4003.7 | SD | 2.9 | 94.96 | 3.08 | 4.62 | 95.75 | 2.79 | 4.36 | 8 | | 3 | 7436.5–5778, 4601.6–4003.7 | SD | 2.97 | 94.74 | 3.14 | 4.41 | 97.69 | 1.97 | 6.18 | 8 | | 4 | 7436.5–5778, 5446.3–4003.7 | SD | 3.01 | 94.57 | 3.19 | 4.42 | 93.87 | 3.19 | 3.82 | 8 | | 5 | 7436.5–5778, 5446.3–4003.7 | NO | 3.09 | 93.20 | 3.57 | 3.89 | 90.52 | 4.28 | 2.85 | 8 | | 6 | 7436.5–5778, 5446.3–4003.7 | FD | 3.14 | 93.92 | 3.38 | 4.14 | 94.99 | 2.97 | 4.11 | 8 |
|
|
