LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Quantitative Analysis of Additives in Solid Zinc Alloys by Laser-induced Plasma Spectrometry | L. St-Onge , M. Sabsabi, Paulo Cielo | Zinc Alloys | IRY 700 | McPherson 207 | |
| Laser: | Nd:YAG 1064.0000nm NonemJ 10.000Hz |
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| Gate Delay: | 10.000us | ||||
| Gate Width: | 10.000us | ||||
| As the title suggests, impurities in solid Zinc alloys are analysed. As with many papers of this period, work is done to measure the plasma temperature and electron density, and firmly establish the best conditions for analysis. Studies were also made of the optimal focusing distance, with a focus point behind the sample surface providing the best results. 9 laser pulses were used to prepare the analysis surface, followed by 16 analysis shots. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Al | 9.0000 (Stated) | 309.2700 | 308.22 | Univariate Calibration | -10.0000--10.0000 | Intensity normalised Zn at 307.59nm. LOD of 16ppm also obtained for 308.22nm peak. |
| Cu | 544.0000 (Stated) | 282.4400 | N/A | Univariate Calibration | -10.0000--10.0000 | Authors noted that Cu peaks at 324.7nm and 327.4nm would have given better detection limits, but these were not available with their equipment. Peak ratioed to Zn @ 280.09nm |
| Fe | 22.0000 (Stated) | 302.0600 | N/A | Univariate Calibration | -10.0000--10.0000 | Peak ratioed to Zn at 307.59nm |
| Pb | 54.0000 (Stated) | 283.3100 | 287.33 | Univariate Calibration | -10.0000--10.0000 | Peak ratioed to Zn @ 280.09nm. LOD of 405ppm also obtained at 287.33nm |
| Sn | 33.0000 (Stated) | 284.0000 | 286.33nm, 303.41nm | Univariate Calibration | -10.0000--10.0000 | Ratioed to Zn @ 280.09nm. LODs of 54ppm and 34ppm obtained at 286.33nm and 303.41nm respectively |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
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