Military University of Technology, Institute of Optoelectronics, Ul. Gen. Sylwestra Kaliskiego 2, 00 - 908, Warsaw 46, Poland.
Talanta. 2021 Apr 1;225:121916. doi: 10.1016/j.talanta.2020.121916. Epub 2020 Nov 23.
In the paper results of Laser-Induced Breakdown Spectroscopy (LIBS) measurements of Al and Si content in aqueous solutions are presented. Calibration curves exhibit good linearity and satisfying R coefficients of determination (over 0.99). The calibration procedures were next used for the determination of Al and Si concentration in biological material transferred into water solutions of unknown Al and Si content. Obtained data were verified by the AAS method (atomic absorption spectrometry). Measurement results showed good conformity. The LIBS spectra were also processed using Factorial Analysis (FA). It was found for Si samples that instead of a classic approach based on the selection of a particular spectral line for the calibration the FA makes possible the use of entire spectra to obtain quantitative information on the investigated material.
本文介绍了激光诱导击穿光谱（LIBS）测量水溶液中铝和硅含量的结果。校准曲线表现出良好的线性和令人满意的决定系数（超过 0.99）。随后，校准程序被用于测定转移到未知铝和硅含量水溶液中的生物材料中的铝和硅浓度。获得的数据通过原子吸收光谱法（AAS）进行了验证。测量结果显示出良好的一致性。LIBS 光谱也使用因子分析（FA）进行了处理。对于硅样品，发现与基于选择特定谱线进行校准的经典方法不同，FA 可以使用整个光谱来获得有关研究材料的定量信息。
