LIBS Info: Element Analysis
| Title | Authors | Material | Detector | Spectrometer | Software |
|---|---|---|---|---|---|
| Evaluation of laser induced breakdown spectroscopy for the determination of micronutrients in plant materials | Lilian Cristina Trevizan, Dário Santos Júnior, Ricardo Elgul Samad, Nilson Dias Viera Jr., Lidiane Cristina Nunes, Iolanda Aparecida Rufini, Francisco José Krug | Plants | ESA 3000 | ESA 3000 | |
| Laser: | Nd:YAG 1064.0000nm 200.0000mJ 10.000Hz |
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| Gate Delay: | 2.000us | ||||
| Gate Width: | 5.000us | ||||
| Samples were produced by cryogenic grinding, prior to pressing into pellets and analysed under Argon atmosphere. LODs were measured for 8 and 30 analysis pulses with significant improvements obtained for the additional pulses. Peak heights and areas were used evaluated for calibrations, with peak height proving better. | |||||
| Element | Detection Limit (ppm) | Wavelength (nm) | Other Wavelengths (nm) | Calibration Method | Calibration Range (ppm) | Notes |
|---|---|---|---|---|---|---|
| Be | 1.4000 (Calibration Curve Slope) | 249.7740 | N/A | Univariate | -10.0000--10.0000 | LOD of 2.2ppm obtained using 8 laser pulses [1.4ppm with 30 laser pulses] |
| Cu | 2.5000 (Calibration Curve Slope) | 324.7500 | 327.396 | Univariate | -10.0000--10.0000 | Using other peaks or numbers of pulses, then LODs in range 2.5-5.0ppm determined |
| Fe | 2.8000 (Calibration Curve Slope) | 259.9400 | 275.573nm | Univariate | -10.0000--10.0000 | LODs in the range 2.8-5.6ppm depending on peak and number of pulses |
| Mn | 1.1000 (Calibration Curve Slope) | 257.6100 | 294.92nm | Univariate | -10.0000--10.0000 | LODs in range 1.1-5.5ppm depending on wavelength and number of analysis pulses |
| Zn | 1.0000 (Calibration Curve Slope) | 206.2000 | 213.856nm | Univariate | -10.0000--10.0000 | LODs in the range of 1.0-3.2ppm depending on wavelength and number of analysis pulses used. |