LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| A Complementary Metal Oxide Semiconductor sensor array based detection system for Laser Induced Breakdown Spectroscopy: Evaluation of calibration Abstract strategies and application for manganese determination in steel | Fabiano Barbieri Gonzaga, Celio Pasquini | Steel | CMOS Linear Array (Hamamatsu S8378-1024Q) | Czerny-Turner (Unspecified) | |
| Laser: | Nd:YAG 1064.0000nm 360.0000mJ 20.000Hz |
||||
| Gate Delay: | Noneus | ||||
| Gate Width: | Noneus | ||||
| Main purpose of this paper is to demonstrate the use of a comparatively low cost, CMOS, sensor for LIBS applications. The detector has a 15.5s integration time. Both univariate and multivariate (PLS) calibration models tested. The authors warn that 'although the present detection system has a low cost, its low resolution imposes a caution against the abusive use of chemometrics'. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|
| Element | RMSE (ppm) | Wavelength (nm) | Calibration Method | Notes |
|---|---|---|---|---|
| Mn | 0.0280 % | 294.1000 | Univariate Calibration | Calibration using 6 samples (0.214-0.608%), validated using 4 samples not in original calibration. |
| Mn | 0.0420 % | 293.4000 | Univariate Calibration | Calibrated using 7 samples (0.214-0.939% Mn), then validated using 4 samples not in original calibration. |
| Mn | 0.0140 % | -10.0000 | Multivariate Calibration | Calibrated using 6 samples (0.214-0.608% Mn), then validated using 4 samples not in original calibration. PLS was used on 292.9-294.5nm range for these results |
| Mn | 0.0230 % | -10.0000 | Multivariate Calibration | Calibrated using 7 samples (0.214-0.939% Mn), then validated using 4 samples not in original calibration. PLS on wavelength range 292-9-295.4nm was used for these results |