From: Quantitative analysis of cadmium in rice roots based on LIBS and chemometrics methods
Pretreatment methods | Wavelength (nm) | Calibration set | Prediction set | ||
---|---|---|---|---|---|
Rc | RMSEC (mg/kg) | Rp | RMSEP (mg/kg) | ||
Raw | 214.44 | 0.8812 | 74.6 | 0.9295 | 61.5 |
226.50 | 0.8703 | 77.8 | 0.9222 | 65.0 | |
228.80 | 0.5495 | 133.0 | 0.6529 | 128.0 | |
After pretreatmenta | 214.44 | 0.9822 | 29.5 | 0.9786 | 33.7 |
226.50 | 0.9840 | 28.1 | 0.9794 | 33.2 | |
228.80 | 0.9548 | 46.8 | 0.9626 | 46.4 |