A5067428697- Laser-induced spectroscopy and plasma
- Analytical chemistry methods development
- Cultural Heritage Materials Analysis
- Heavy Metals in Plants
- Heavy metals in environment
- Spectroscopy and Chemometric Analyses
- Geomagnetism and Paleomagnetism Studies
Brazilian Agricultural Research Corporation
2021-2024
Universidade Federal de São Carlos
2022-2024
This study aims to develop a single calibration model determine nutrient elements directly (Ca, Mg, Mn, and P) in soybean sugar cane leaf samples by double pulse laser-induced breakdown spectroscopy (DP LIBS).
Soil carbon (C) determinations have been widely studied due to soil C sequestration that contributes the mitigation of greenhouse gas emissions and improves quality.
The correct choice of the calibration strategy method is a step that can ensure accuracy carbon determination in soils by laser-induced breakdown spectroscopy. In this paper, we evaluate and discuss intrinsic characteristics univariate multivariate strategies overcoming soil matrix effects their influence on magnitude prediction error values. matrix-matching with previous correction Al spectral interference C I line at 193.03 nm was best 13 models evaluated [root-mean-square...
Laser-Induced Breakdown Spectroscopy (LIBS) is a technique that uses high-energy pulsed laser to detect and analyze elements present in sample.The beam directed through an optical system (commonly mirrors, lenses, prisms, or fibers) focused onto the sample's surface.When interacts with sample, part ablated, vaporized, generates high-temperature plasma.The species plasma emit electromagnetic radiation characteristics of each element sample.This collected by lenses conveyed fiber spectrometer,...
This study aims to develop a single calibration model determine nutrient elements directly (Ca, Mg, Mn, and P) in soybean sugar cane leaves samples by laser-induced breakdown spectroscopy (LIBS). It was evaluated matrix-matching (MMC) using direct inverse models. Forty-five were used build the (23 22 leaves), fifteen for prediction test (8 7 leaves) In model, analyte concentration sample is independent variable, analytical signal dependent variable. general, both models presented...