A novel approach to sensitivity evaluation of laser-induced breakdown spectroscopy for rare earths elements determinationстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 29 августа 2018 г.
Аннотация:We report the potentials of Laser-Induced Breakdown Spectroscopy (LIBS) for the determination of lanthanum and yttrium in soils and rocks. Since the main problems to quantify rare earth elements by LIBS is their rich spectra and, consequently, often spectral interferences with matrix elements, we demonstrated how thermodynamic modeling of spectra can assist the spectroscopists in the estimation of LIBS sensitivity. The theoretical LOD for La was close to the one retrieved from experimental data (6 ppm), while the theoretical LOD for Y was one order of magnitude higher than the experimental LOD (6 ppm vs 0.4 ppm). The possible reasons of such discrepancy are discussed.