LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Determination of trace constituents in thoria by laser induced breakdown spectrometry | Suresh K. Aggarwal, Arnab Sarkar, D. Alamelu | Nuclear | Spectrolaser 1000 | Spectrolaser 1000 | Spectrolaser |
| Laser: | Nd:YAG 1064.0000nm 50.0000mJ 10.000Hz |
||||
| Gate Delay: | 6.000us | ||||
| Gate Width: | 1000.000us | ||||
| Samples of Thoria (ThO2) were prepared using 3cm wide Al sample cups and a pressure of 2 10^9 Pa to form a pellet. In addition to the elements with LODs, Mn, Nz, V, Be, Ce, B and Cr were also detected, but could not be quantified due to the complex spectra (from the high Th concentration) | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Al | 18.0000 (Calibration Curve Slope) | 256.7980 | N/A | Univariate | 6.9000-65.0000 | Intensity ratioed to Th (II) at 318.019nm. |
| Ca | 26.0000 (Calibration Curve Slope) | 422.6720 | N/A | Univariate | 73.0000-586.0000 | Intensity ratioed to Th (II) at 318.019nm. |
| Cu | 46.0000 (Calibration Curve Slope) | 327.3950 | N/A | Univariate | 3.1000-110.0000 | Intensity ratioed to Th (II) at 318.019nm. |
| Fe | 32.0000 (Calibration Curve Slope) | 277.2100 | N/A | Univariate | 56.0000-137.0000 | Intensity ratioed to Th (II) at 318.019nm. |
| Mg | 38.0000 (Calibration Curve Slope) | 279.5520 | N/A | Univariate | 4.8000-168.0000 | Intensity ratioed to Th (II) at 318.019nm. |
| Mo | 19.0000 (Calibration Curve Slope) | 386.4100 | N/A | Univariate | 1.2000-45.0000 | Intensity ratioed to Th (II) at 318.019nm. |
| Ni | 24.0000 (Calibration Curve Slope) | 301.9140 | N/A | Univariate | 11.0000-57.0000 | Intensity ratioed to Th (II) at 318.019nm. |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|---|---|---|---|
| Al | 3.7000 ppm | 256.7980 | Univariate Calibration | Peak ratioed to Th (main matrix element) at 318.019nm |
| Ca | 76.0000 ppm | 422.6720 | Univariate Calibration | Peak ratioed to Th (main matrix element) at 318.019nm |
| Cu | 8.0000 ppm | 327.3950 | Univariate Calibration | Peak ratioed to Th (main matrix element) at 318.019nm |
| Fe | 23.0000 ppm | 277.2100 | Univariate Calibration | Peak ratioed to Th (main matrix element) at 318.019nm |
| Mg | 12.0000 ppm | 279.5520 | Univariate Calibration | Peak ratioed to Th (main matrix element) at 318.019nm |
| Mo | 22.0000 ppm | 386.4100 | Univariate Calibration | Peak ratioed to Th (main matrix element) at 318.019nm |
| Ni | 10.0000 ppm | 301.9140 | Univariate Calibration | Peak ratioed to Th (main matrix element) at 318.019nm |