Zobrazeno 1 - 10
of 30
pro vyhledávání: '"I. R. Elizarova"'
Publikováno v:
Arctic and Antarctic Research. 68:160-172
Summary The aim of the study is to estimate the role of sediment components in the accumulation of microelements in lakes of the permafrost-affected area (the Lena Delta, northern Siberia). A fractional analysis of several trace elements (V, Cr, Co,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea270bfd97274f8d3fd03b2f56efdbb2
https://doi.org/10.30758/0555-2648-2022-68-2-160-172
https://doi.org/10.30758/0555-2648-2022-68-2-160-172
Publikováno v:
Geochemistry International. 60:222-233
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9c23eddb2de610f6e91a7f5ff6ed18c
https://doi.org/10.1134/s0016702922020033
https://doi.org/10.1134/s0016702922020033
Publikováno v:
Transaction Kola Science Centre. 11:23-29
The paper considers аsoftware method (WinLab32,Optima 2100DV)emission spectrometer for increasing the intensity of the analytical signal when the gas flow rate of the atomizer in the spray chamber changes. The determination of the optimal atomizer g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56dd4dd549165daa491c8a9e296ce87e
https://doi.org/10.37614/2307-5252.2020.3.4.004
https://doi.org/10.37614/2307-5252.2020.3.4.004
Publikováno v:
Transaction Kola Science Centre. 11:15-18
In this paper, the change in the chemical composition of water in the discharge channel in the spring and autumnperiodswas studied. An increase in the concentration of iron, alkali metals and a decrease in alkaline earth and non-ferrous metals in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::793f5cbd2b42a6ffd9335e7e39f12f9a
https://doi.org/10.37614/2307-5252.2020.3.4.002
https://doi.org/10.37614/2307-5252.2020.3.4.002
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 981:032040
Wastewater treatment from pollutants, in particular from fluorine ions, is an important and urgent task. This paper presents the results of laboratory studies to remove fluorides from model solutions using a natural sorbent - brucite. Experiments wer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bfb2af93d6f8a22231e0be65bfa4f85
https://doi.org/10.1088/1755-1315/981/3/032040
https://doi.org/10.1088/1755-1315/981/3/032040
Autor:
S. M. Masloboeva, I. R. Elizarova
Publikováno v:
Russian Journal of Inorganic Chemistry. 63:239-244
Nb2O5〈В〉 solid precursors and LiNbO3〈В〉 batches prepared on their basis, which can be used for preparing optical-quality lithium niobate single crystals and pore-free piezoelectric ceramics, have been studied by laser ablation inductively c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5092f22c1692404b86d9d24cd04d3847
https://doi.org/10.1134/s0036023618020055
https://doi.org/10.1134/s0036023618020055
Publikováno v:
Tsvetnye Metally. :63-68
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfd72a7317a45e743b023819294f13c0
https://doi.org/10.17580/tsm.2017.06.10
https://doi.org/10.17580/tsm.2017.06.10
Publikováno v:
Theoretical Foundations of Chemical Engineering. 50:781-784
The purification of niobium from antimony impurity via extraction with tributyl phosphate from solutions of the HF + NH4F mixture has been studied. It has been established that at an HF + NH4F content equal to 7–16 mol/L and an NH4F concentration o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::457c6577bb3fde2316c9b70d7f007b63
https://doi.org/10.1134/s0040579516050158
https://doi.org/10.1134/s0040579516050158
Publikováno v:
Russian Journal of Applied Chemistry. 89:1082-1088
New approach to processing of the apatite concentrate is suggested and substantiated. The approach includes treatment of the concentrate with a phosphoric acid solution at room temperature in the presence of a sulfo cation exchanger in the NH4+ or H+
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dbd3f665d8a8c456ce14552c0fa81de
https://doi.org/10.1134/s1070427216070065
https://doi.org/10.1134/s1070427216070065
Publikováno v:
Theoretical Foundations of Chemical Engineering. 50:547-553
The conditions of tantalite (Congo deposit) and the decomposition of columbite (Zashikhinsk deposit) using an HF and H2SO4 mixture when heated to 80°C have been found. The extraction of Ta and Nb into solutions achieved levels of more than 99% and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8bb566ee3090e1292133c0b348cef50
https://doi.org/10.1134/s0040579516040175
https://doi.org/10.1134/s0040579516040175