LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Characterization of inorganic species in coal by laser-induced breakdown spectroscopy using UV and IR radiations | M.P. Mateo, G. Nicolas, A. Yanez | Coal | Andor ICCD | Oriel MS 257 | |
| Laser: | Nd:YAG 355.0000nm 70.0000mJ NoneHz |
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| Gate Delay: | Noneus | ||||
| Gate Width: | Noneus | ||||
| The authors compare analysis of coal pellets using both 355 and 1064nm, concluding that 355nm provides better accuracy. A comparison of the analysis of dynamic (a line of 30 laser pulses on different positions) vs static (11 pulses in the same location) provides better results on some elements but not others. Generally RSD < 6% obtained on elements of interest (Ca, Al, Mg, Fe and Si) | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|---|---|---|---|
| Fe | 0.0200 % | 274.9480 | Univariate Calibration | Calibration using 355nm laser |
| Fe | 0.1500 % | 274.9480 | Univariate Calibration | 1064nm laser calibration |
| Mg | 0.0200 % | 285.2130 | Univariate Calibration | 355nm laser calibration |
| Mg | 0.0600 % | 285.2130 | Univariate Calibration | 1064nm laser calibration |
| Si | 0.1600 % | 288.1580 | Univariate Calibration | 355nm Calibration |
| Si | 0.5000 % | 288.1580 | Univariate Calibration | 1064nm laser Calibration |
| Al | 0.1000 % | 309.2710 | Univariate Calibration | 355nm laser calibration. Standard concentration measured from Fig 5 |
| Al | 0.7500 % | 309.2710 | Univariate Calibration | 1064nm laser calibration. Standard concentration measured from Fig 5 |
| Ca | 0.1800 % | 315.8870 | Univariate Calibration | 1064nm laser calibration. Standard concentration measured from Fig 5 |
| Ca | 0.0500 % | 315.8870 | Univariate Calibration | 355nm laser calibration. Standard concentration measured from Fig 5 |