LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Detection of trace elements in liquids by laser-induced breakdown spectroscopy with a Meinhard nebulizer | Akshaya Kumar, Fang Y. Yueh, Tracy Miller, Jagdish P. Singh | Liquids | Not Known | HR460 | |
| Laser: | Nd:YAG 532.0000nm 400.0000mJ NoneHz |
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| Gate Delay: | 1.000us | ||||
| Gate Width: | 10.000us | ||||
| A Meinhard nebulizer is used to make a fine mist which is then analysed using LIBS. This has the advantage of very small amounts (~20ml) can be readily analysed, rather than the greater volumes required for most liquid jet applications [although probably still more than is required for static liquids or filter papers!]. Maximum signal occured for gas flow rate of 300ml/min and a liquid flow rate of 3ml/min. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Mg | 0.1700 (Stated) | 279.5520 | 280.27nm, 285.2nm | Univariate Calibration | -10.0000--10.0000 | Calibration curves showed several different regions [1-5ppm, 8-10ppm, 10-35ppm] with distinctly different slopes. Greater sensitivity in the low concentrations was achieved using the Mg II 279.552 or 280.27nm peaks. |
| Mn | 0.6000 (Stated) | 403.0000 | N/A | Univariate Calibration | -10.0000--10.0000 | Peak intensities without correction were used for calibration |
| Cr | 0.1600 (Stated) | -10.0000 | 359 | Univariate Calibration | -10.0000--10.0000 | Peak Intensities used without correction |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|