2026-10-14T17:27:33Z https://www.scidb.cn/oai

10.57760/sciencedb.12638 2024-09-25T18:25:17Z

2024-09-25 Comparison of univariate and multivariate analysis of U and Th in graphite matrix using Laser-induced breakdown spectroscopy doi:10.57760/sciencedb.12638 en In this data, the laser-induced breakdown spectroscopy (LIBS) was employed to quantitatively analyze uranium (U) and thorium (Th) elements in the graphite matrix. For the Th element, both univariate and partial least squares regression (PLSR) methods were utilized for quantitative analysis, with the PLSR method significantly improving the accuracy. In the case of U, only PLSR method was applicable because of the unresolved U emission lines. These findings indicate that combining PLSR with LIBS can achieve high-precision analysis of Th and U elements in a graphite matrix, which demonstrating its potential value in nuclear fuel cycle monitoring laser-induced breakdown spectroscopy; uranium; thorium Baobao Jiao 樊平平 Jianfeng Cao Xiangting Meng Lingling Peng Lin Liu Xiaoliang Liu PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank