Kinetics of Alloy Emission Spectra with Double-Pulse Laser AblationJournal of Applied Spectroscopy - Tập 86 - Trang 294-299 - 2019
E. S. Voropay, K. F. Ermalitskaia, F. A. Ermalitskii
A spectral-kinetic recorder operating in a special time-gating mode was developed for time-shifted measurement of time-resolved spectra and emission-line intensity kinetics in atomic emission analysis. The luminescence intensity kinetics of Cu, Zn, Sn, and Pb were recorded for two-pulse laser ablation of pure metals and multicomponent alloys. The spectral-line intensity kinetics of pure metals cou...... hiện toàn bộ
Investigation of Structural-Phase Conversion of an Iron-Containing Catalyst by Mössbauer Spectroscopy (Part 2)Journal of Applied Spectroscopy - Tập 88 - Trang 92-96 - 2021
I. I. Mukhamatdinov, A. V. Pyataev, R. D. Zaripova, A. R. Khaidarova, A. V. Vakhin
The active form of an iron-containing catalyst, an Fe(II, III) mixed oxide, was studied by Mössbauer spectroscopy in order to identify the mechanism of formation of catalysts used for upgrading of heavy oil from Ashalchinsk field. The iron-oxide phase participates in the formation process by breaking carbon–heteroatom bonds in high-molecular-mass components (resins and asphaltenes) of heavy oil an...... hiện toàn bộ