Инд. авторы: Lavrent'ev Y.G., Usova L.V.
Заглавие: Problem of the Account of Matrix Effect in Electron Probe Microanalysis of Rock-Forming Minerals
Библ. ссылка: Lavrent'ev Y.G., Usova L.V. Problem of the Account of Matrix Effect in Electron Probe Microanalysis of Rock-Forming Minerals // Journal of Analytical Chemistry. - 2018. - Vol.73. - Iss. 1. - P.42-49. - ISSN 1061-9348. - EISSN 1608-3199.
Идентиф-ры: DOI: 10.1134/S1061934817110077; РИНЦ: 35499688; SCOPUS: 2-s2.0-85043380400; WoS: 000427083100007;
Реферат: eng: Four methods of correction and three methods of calculation of absorption coefficients are tested in electron probe microanalysis of rock-forming minerals. Experimental data by Pouchou and Pichoir, Sewell-Love-Scott, and Armstrong are attracted in tests. It is shown that the correction factor can be calculated with the error no more than 1 rel. % if a short-wave line (matrix effect is determined mainly by the effect of atomic number) is used as an analytical line or the analytical line belongs to the absorption K-edge of elements present in the sample. In the presence of binary matrix effect, when the analytical line absorbs in the K-L (1) region, the situation is more complex and additional studies are required.
Ключевые слова: correction methods; matrix effect; electron probe microanalysis; rock-forming minerals; mass absorption coefficients;
Издано: 2018
Физ. хар-ка: с.42-49
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