LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Calibration measurements in laser-induced breakdown spectroscopy using nanosecond and picosecond lasers | P. Stavropoulos, S. Couris, C. Palagas, G.N. Angelopoulos, D.N. Papamantellos | Slag | Not Known | Not Known | |
| Laser: | Nd:YAG 1064.0000nm NonemJ 10.000Hz |
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| Gate Delay: | 1.000us | ||||
| Gate Width: | 3.000us | ||||
| Main purpose of this work is to contrast nanosecond(5ns) and picosecond (35ps) LIBS results. Reproducibility was strongly affected by the jitter in the laser pulse energies (5% for the nanosecond laser, 20% for the ps). The end use of this research was the analysis of ferronickel slag. In this paper a slag analogue made up of CaO and pure metal powders ground to together and pressed into pellets was used. Plasma temperature measurements showed a consistently higher temperature for ns pulses compared to ps. Similarly electron densities were higher with ns pulses. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Al | 3.5000 (Stated) | -10.0000 | 309.27 | Univariate Calibration | 2000.0000-20000.0000 | Nanosecond pulses used. No normalisation/ratioing |
| Al | 15.0000 (Stated) | 309.2700 | N/A | Univariate Calibration | 2000.0000-20000.0000 | Picosecond pulses used. No ratioing |
| Fe | 11.0000 (Stated) | 404.5800 | N/A | Univariate Calibration | 2000.0000-20000.0000 | Nanosecond pulses. |
| Fe | 18.0000 (Stated) | 404.5800 | N/A | Univariate Calibration | 2000.0000-20000.0000 | Picosecond pulses |
| Si | 6.0000 (Stated) | 288.1600 | N/A | Univariate Calibration | 2000.0000-20000.0000 | Nanosecond pulses |
| Si | 9.0000 (Stated) | 288.1600 | N/A | Univariate Calibration | 2000.0000-20000.0000 | Picosecond pulses |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
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