LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Enhancement of carbon detection sensitivity in laser induced breakdown spectroscopy with low pressure ambient helium gas | K.H. Kurniawan, M.O. Tjia, K. Kagawa, D.P. Kurniawan, M M Suliyanti, R. Hedwig, Z.S. Lie, E. Jobiliong, M. Pardede, N. Idris | Gems | Andor ICCD | Czerny-Turner (Unspecified) | |
| Laser: | Nd:YAG 1064.0000nm 60.0000mJ 10.000Hz |
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| Gate Delay: | 0.200us | ||||
| Gate Width: | 50.000us | ||||
| The authors utilise low pressure He atmosphere to enable the analysis of C in Jasper, with minimal damage to the samples. While an ANDOR Mechelle is used for the spectra work, they switch to a McPherson Czerny-Turner spectrograph for the calibration curve development. Results show that 2.6kPa He gives significantly stronger C peaks than 0.5kPa Air (8-10x). Calibration curves were prepared using Pellets of KBr and CaCO3 | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| C | 0.6000 (Calibration Curve Slope) | 247.8000 | N/A | Univariate | 5.0000-100.0000 | Minimum concentration sample contained 5ppm C. Detection limited inferred from usual 3 sigma/slope |
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
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