LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Determination of thorium and uranium in solution by laser-induced breakdown spectrometry | N/A | Actinides | Spectrolaser 1000 | Spectrolaser 1000 | Spectrolaser |
| Laser: | Nd:YAG 1064.0000nm 100.0000mJ 10.000Hz |
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| Gate Delay: | 0.600us | ||||
| Gate Width: | Noneus | ||||
| A novel method whereby solutions are applied to filter paper and then dried before analysis is described. The process leads to a significant concentration enhancement. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| U | 18.5000 (Stated) | 367.0070 | 409.013 | Calibration Curve | None-5000.0000 | A Detection limit of 24.6ppm (weight) was determined using the 409.013nm peak. Note that there is strong interference from Th I 366.998nm and the Th band of peaks in the 405-425nm regions. |
| Th | 0.7200 (Stated) | 401.9130 | 283.729, 318.019 | Calibration Curve | None-1000.0000 | Detection limits for 283.729nm (1.6ppmw) and 318.019nm (2.25ppmw) were also determined. Th can be determined in the presence of U as the 401.913nm line is free from U interferences |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|