LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Analysis of heavy metals in liquids using Laser Induced Breakdown Spectroscopy by liquid-to-solid matrix conversion | D.M. Diaz Pace, C. D’Angelo, D. Bertuccelli, G. Bertuccelli | Liquids | Photomultiplier | Monochromator | |
| Laser: | Nd:YAG 1064.0000nm 160.0000mJ 2.000Hz |
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| Gate Delay: | 7.000us | ||||
| Gate Width: | 2.000us | ||||
| Solid samples for analysis were made by mixing CaO into the solution, collecting the precipitate and letting this dry at room temperature. After drying, precipitate was ground and pressed at 1 ton/cm^2 into pellets. This process produces a concentrating of the material into the pellet. The CaO was found to contain 5ppm levels of Mg, Fe, Sr and Na, which was accounted for in the calibrations. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Cr | 1.2000 (Stated) | 357.8700 | N/A | Univariate | 2.0000-80.0000 | Curve shows saturation. Using methodology described by authors, saturation is significant ~34ppm |
| Pb | 20.0000 (Stated) | 405.7800 | N/A | Univariate | 20.0000-375.0000 | Curve shows saturation. Using methodology described by authors, saturation is significant ~330ppm |
| Cd | 129.0000 (Stated) | 326.1000 | N/A | Univariate | 200.0000-900.0000 | Curve shows saturation. Using methodology described by authors, saturation is significant ~695ppm |
| Zn | 21.0000 (Stated) | 481.0500 | N/A | Univariate | 40.0000-650.0000 | Curve shows saturation. Using methodology described by authors, saturation is significant ~130ppm |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
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