LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Total carbon measurement in whole tropical soil sample | Robson M. da Silva, Debora M.B.P. Milori, Edilene C. Ferreira, Ednaldo J. Ferreira, Francisco José Krug, Ladislau Martin-Neto | Soil | StellarNet PORTA-LIBS-2000 | StellarNet PORTA-LIBS-2000 | |
| Laser: | Nd:YAG 1064.0000nm 25.0000mJ 1.000Hz |
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| Gate Delay: | 2.000us | ||||
| Gate Width: | Noneus | ||||
| Prior to analysis, the soil samples were cryogenic ground, then pressed into pellets. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| C | 3000.0000 (Minimum concentration detected) | 193.0900 | N/A | Univariate Calibration | 3000.0000-7100.0000 | The authors tried calibrations using the intensity in a single pixel of the C peak at 193nm [the 247.86nm peak had strong Fe interferences]. The pixel wavelengths were 192.78nm, 192.87nm, 192.96nm, 193.04nm and 193.15nm. Best results were obtained using a multivariate calibration against all 5 pixels. |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|