LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Detection of toxic elements using laser-induced breakdown spectroscopy in smokers’ and nonsmokers’ teeth and investigation of periodontal parameters | Yusuf B. Habibullah, Sami Shafik, M. Nasr, M.A. Gondal, Abdul M. Alhasmi | Biological | Andor ICCD | Andor Shamrock 500i | |
| Laser: | Nd:YAG 266.0000nm 40.0000mJ 20.000Hz |
||||
| Gate Delay: | 0.400us | ||||
| Gate Width: | Noneus | ||||
| The authors analysed 90 teeth from smokers, nonsmokers (both with peridontal disease) and a control (without disease) for elements linked to disease (Pb, As, Cd). Good RMSEP were obtained for all elements (referenced to ICP). The Temperature and Electron Density of the LIBS plasma were checked to ensure plasma was optically thin. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| As | 0.0600 (Lowest Detected Concentrations) | 446.6300 | N/A | Univariate | -10.0000--10.0000 | In Teeth! |
| Cd | 0.0200 (Lowest Detected Concentrations) | 643.8500 | N/A | None | -10.0000--10.0000 | In Teeth! |
| Pb | 0.1800 (Lowest Detected Concentrations) | 405.7000 | N/A | Univariate | -10.0000--10.0000 | Measurement in Teeth. |