RT Journal Article
T1 Progress in arsenic determination at low levels in copper ores by  laser-induced breakdown spectroscopy
A1 Velásquez, Marizú
A1 Myakalwar, Ashwin Kumar
A1 Manzoor, Sadia
A1 Vadillo-Pérez, José Miguel
A1 Laserna-Vázquez, José Javier
A1 Yáñez, Jorge
K1 Espectroscopía de plasma inducido por láser
K1 Geoquímica analítica
K1 Redes neuronales (Informática)
AB Arsenic determination by LIBS at low levels is a challenging analytical task due to its low sensitivity, limited number of available emission lines, and spectral interferences. In this work, a LIBS system with controlled atmosphere for the determination of arsenic at low concentrations in copper ores is presented. Under optimized conditions, the As lines at 278.06 nm (with interference of Fe II) and 286.04 nm were able to be used for measurements. Improved analytical figures of merits were obtained using deconvoluted spectra and artificial neural network based on a radial basis function (ANN-RBF), specific values of relative error percentage (REP %), root mean square error of prediction (RMSEP) and intervals of limits of detection (LOD) and quantification (LOQ) were 18.6 wt%, 0.037 wt%, 0.045–0.062 wt% and 0.135–0.185 wt%, respectively.
PB Elsevier
YR 2022
FD 2022
LK https://hdl.handle.net/10630/44753
UL https://hdl.handle.net/10630/44753
LA eng
NO M. Velásquez, A.K. Myakalwar, S. Manzoor, et al., Progress in arsenic determination at low levels in copper ores by laser-induced breakdown spectroscopy, Spectrochimica Acta Part B: Atomic Spectroscopy (2022), https://doi.org/ 10.1016/j.sab.2022.106501
NO https://openpolicyfinder.jisc.ac.uk/id/publication/15141?from=single_hit
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 3 mar 2026