LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Potential use of surface-assisted LIBS for determination of strontium in wines | P. Veis, J. Yu, A. Marin Roldan, J. Bockova | Liquids | Andor ICCD | Mechelle 5000 | |
| Laser: | Nd:YAG 266.0000nm 40.0000mJ 10.000Hz |
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| Gate Delay: | 0.400us | ||||
| Gate Width: | 3.000us | ||||
| The authors dry the wine sample on both Silicon and Aluminium Wafers [30mins] before analysis. They argue this leads to a significant improvement in LOD without unreasonably complicating the analysis time. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Sr | 0.2070 (Calibration Curve Slope) | 460.7330 | N/A | Univariate | 0.0000-30.0000 | Normalised to Ca I (646.257nm). Sample dried on an Aluminium Wafer |
| Sr | 0.0530 (Calibration Curve Slope) | 460.7330 | 481.188nm, 407.771nm | Univariate | 0.0000-30.0000 | Best result utilised 460.733nm line normalised to the Ca I peak at 646.257nm on a Silicon Wafer. A range of other combinations tested, many with sub-ppm performance |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
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