Zobrazeno 1 - 5
of 5
pro vyhledávání: '"U. V. Ondar"'
Publikováno v:
Journal of Analytical Chemistry. 72:163-170
The nonuniformity of aerosol distribution over filter surface was studied. It was found that the distribution depends on the properties of the studied object and on the sampler type: particle concentration is often higher in the center of the filter,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::286c7e4c43c8ed17eb4e7576eb4f737d
https://doi.org/10.1134/s1061934817020125
https://doi.org/10.1134/s1061934817020125
Autor:
S. V. Polyakova, L. A. Potapov, V. A. Kozlov, A. N. Smagunova, S. D. Pan’kov, U. V. Ondar, O. F. Rozova
Publikováno v:
Journal of Analytical Chemistry. 63:723-729
The dual effect of the microabsorption heterogeneity (MAH) of emitters on the fluorescence intensity (Ifl) is shown on the basis of the literature data. The duality is due to the covering of large fluorescent grains by small filler particles (II type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d7dfa91f9d2e04cba86da0e398316be
https://doi.org/10.1134/s1061934808080030
https://doi.org/10.1134/s1061934808080030
Autor:
E. I. Molchanova, U. V. Ondar, N. V. Boshchenko, H. V. Vashukevich, N. G. Aprelkov, V. A. Kozlov, A. N. Smagunova
Publikováno v:
Scopus-Elsevier
Sources of errors due to the chemical composition and nonuniform surface density (P s) of unsaturated specimens in the x-ray fluorescence analysis of heavy metals in humic acids have been assessed quantitatively. Two methods are proposed to take into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0710a2f6412e0931749ac5b08ffd5cde
https://doi.org/10.1023/b:janc.0000047009.01907.14
https://doi.org/10.1023/b:janc.0000047009.01907.14
Publikováno v:
Journal of Analytical Chemistry. 56:833-836
The background intensity Ibin the short-wave (0.065–0.15 nm) and long-wave (0.19–0.85 nm) X-ray regions is studied experimentally as a function of the particle size D(15–360 μm) for single-phase and multiphase samples. It is found that, for si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33ac85d9cb5e7e76021361109c22fa2c
https://doi.org/10.1023/a:1016760413125
https://doi.org/10.1023/a:1016760413125
Autor:
G. V. Gomul'skaya, E. I. Molchanova, G. V. Pavlinskii, A. N. Smagunova, O. M. Karpukova, U. V. Ondar
Publikováno v:
Scopus-Elsevier
A unified procedure for the X-ray fluorescence determination of Pb, Mo, Rb, As, Zn, Ni, Fe, and Mn in biological materials was developed using the internal standard technique (gallium was the reference element). The samples were prepared for analysis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24cc613e4f5b3a70e0e46c49a2d8bb10
http://www.scopus.com/inward/record.url?eid=2-s2.0-5644263931&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-5644263931&partnerID=MN8TOARS
