LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Detection of Metals in the Environment using a Portable Laser-Induced Breakdown Spectroscopy Instrument | Karen Y. Yamamoto, David A. Cremers, Monty J. Ferris, Leeann E. Foster | Paint | 6132 | HR320 | |
| Laser: | Nd:YAG 1064.0000nm 20.0000mJ 0.500Hz |
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| Gate Delay: | 0.100us | ||||
| Gate Width: | 0.500us | ||||
| This paper explores the use of a LIBS rig suitable for use in the field with a focus on low power requirements and small size. The paint was spread on a wood substrate and then analysed in-situ. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Ba | 265.0000 (Stated) | 455.4000 | N/A | Univariate Calibration | -10.0000--10.0000 | Best calibration curve resulted when Ba (455.4nm) peak was ratioed to the Fe(i) peak at 404.58nm |
| Be | 9.3000 (Stated) | 313.0400 | 313.11 | Univariate Calibration | -10.0000--10.0000 | The Be(II) peaks at 313.04/313.11nm could not be resolved and both were used for the calibration curve. Best results were obtained when this (combined) peak was ratioed to the Si(I) peak at 288.16nm. Better results (LOD=4.4ppm) were obtained using a cylindrical rather than a spherical focusing lens. |
| Pb | 298.0000 (Stated) | 405.7800 | N/A | Univariate Calibration | -10.0000--10.0000 | Best results were obtained when the Pb peak was ratioed to the Si Peak at 390.55nm |
| Sr | 42.0000 (Stated) | 407.7700 | N/A | Univariate Calibration | -10.0000--10.0000 | Best results were obtained when the Sr peak was ratioed to the Fe peak at 406.36nm |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
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