LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Accuracy improvement of iron ore analysis using laser-induced breakdown spectroscopy with a hybrid sparse partial least squares and least-squares support vector machine model | X.Y. Li, X.Y. Zeng, Y.F. Lu, S.S. Tang, Q.D. Zeng, S.X. Ma, Y. Tang, Q.Z. Hao, L.B. Guo, Y.M. Guo | Iron Ore | Andor iStar ICCD | Andor Shamrock 500i | |
| Laser: | Nd:YAG 532.0000nm 3.0000mJ 10.000Hz |
||||
| Gate Delay: | 5.000us | ||||
| Gate Width: | 5.000us | ||||
| A total of 28 samples, made from mixes of 8 reference materials are used as a calibration/test set for a number of multivariate analysis techniques. Samples were analysed as pressed pellets. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|---|---|---|---|
| Mg | 0.2497 % | -10.0000 | Multivariate [LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Mg | 0.2157 % | -10.0000 | Multivariate [SPLS-LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Mg | 0.2734 % | -10.0000 | Multivariate [SPLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Ca | 0.0962 % | -10.0000 | Multivariate [SPLS-LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Ca | 0.1343 % | -10.0000 | Multivariate [LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Ca | 0.1841 % | -10.0000 | Multivariate [SPLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Al | 0.0456 % | -10.0000 | Multivariate [SPLS-LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Al | 0.0496 % | -10.0000 | Multivariate [LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Al | 0.0692 % | -10.0000 | Multivariate [SPLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Si | 0.3569 % | -10.0000 | Multivariate [SPLS-LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Si | 0.4746 % | -10.0000 | Multivariate [LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Si | 0.8002 % | -10.0000 | Multivariate [SPLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Fe | 0.6242 % | -10.0000 | Multivariate [SPLS-LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Fe | 0.7056 % | -10.0000 | Multivariate [LS-SVM] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Fe | 1.1793 % | -10.0000 | Multivariate [SPLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Mg | 0.2447 % | -10.0000 | Multivariate [PLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Ca | 0.3359 % | -10.0000 | Multivariate [PLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Al | 0.0727 % | -10.0000 | Multivariate [PLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Si | 0.7384 % | -10.0000 | Multivariate [PLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |
| Fe | 1.2177 % | -10.0000 | Multivariate [PLS] | Pressed Pellet Analysis. Part of a comparison of Multivariate methods |