LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Laser induced breakdown spectroscopy for bulk minerals online analyses | M. Gaft, I. Sapir-Sofer, H. Modiano, R. Stana | Fertilizer | AvaSpec-2048-SPU | AvaSpec-2048-SPU | |
| Laser: | Nd:YAG 1064.0000nm 45.0000mJ 20.000Hz |
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| Gate Delay: | 1.000us | ||||
| Gate Width: | 9000.000us | ||||
| Rare example of use of LIBS for online analysis in an industrial setting. The authors use their ruggedised LIBS rig to analyse source rocks for a phosphate plant. Rig has auto focus and air conditioning, and the paper contains data from 9 months of operation in the field. Calibration is via determining empirical relationship between spectra and source material concentrations. Results are less accurate than lab determination, but may be more representative due to continuous sampling. Results also presented for coal ash analysis | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|---|---|---|---|
| Mg | 0.0900 % | -10.0000 | Univariate Calibration | One point comparison to lab data (rather than necessarily indicative of full performance). |
| Fe | 0.0600 % | -10.0000 | Univariate Calibration | One point comparison to lab data (rather than necessarily indicative of full performance). |
| Al | 0.1100 % | -10.0000 | Univariate Calibration | One point comparison to lab data (rather than necessarily indicative of full performance). |