LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Use of the vacuum ultraviolet spectral region for laser-induced breakdown spectroscopy-based Martian geology and exploration | Leon Radziemski, David A. Cremers, Katherine Benelli, Cynthia Khoo, Ronny D. Harris | Soil | Andor ICCD | McPherson 218 | |
| Laser: | Nd:YAG 1064.0000nm 40.0000mJ 5.000Hz |
||||
| Gate Delay: | Noneus | ||||
| Gate Width: | 20.000us | ||||
| Experiments to determine detection limits under Martian conditions. To simulate this, measurements were made in a chamber containing 7 torr (930 Pa) CO2. A range of materials were used for analysis, although Los Alamos soil featured prominently. The paper has VUV spectra for As, Br, Cl, P ans S. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| As | 440.0000 (Stated) | 189.0000 | N/A | Univariate Calibration | -10.0000--10.0000 | Delay: 200ns % RSD: 26 |
| Br | 56000.0000 (Stated) | 163.3000 | 154.1 | Univariate Calibration | -10.0000--10.0000 | Delay: 100ns % RSD: 53% LOD @ 154.1nm: 5.6% % RSD: 43 |
| C | 2400.0000 (Stated) | 247.8000 | 165.7nm, 193.1nm | Univariate Calibration | -10.0000--10.0000 | Delay: 500ns RSD:7.6% 193.1nm LOD: 0.32% 165.7nm LOD: 0.51% |
| Cl | 75000.0000 (Stated) | 133.6000 | N/A | Univariate Calibration | -10.0000--10.0000 | Delay: 500ns LOD: 27% |
| P | 280.0000 (Stated) | 178.3000 | N/A | Univariate Calibration | -10.0000--10.0000 | Delay: 1500ns RSD: 16% |
| S | 1100.0000 (Stated) | 545.4000 | 180.7nm, 182.6nm | Univariate Calibration | -10.0000--10.0000 | Delay: 500ns RSD: 10% 180.7nm LOD: 1.03% 182.6nm LOD: 1.77% |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|