Zobrazeno 1 - 10
of 19
pro vyhledávání: '"I. E. Veleshko"'
Autor:
M. G. Drozdova, A. N. Veleshko, A. N. Sonina, E. A. Markvicheva, L. S. Gal′braikh, I. E. Veleshko, G. A. Vikhoreva
Publikováno v:
Fibre Chemistry. 45:79-84
Nanofibrous material was prepared by needle-free electrospinning from a mixture of chitosan and polyvinyl alcohol of equal masses. The conditions for converting it to an insoluble form by heat treatment were studied. The effectiveness of using chitos
Autor:
E. V. Rumyantseva, A. N. Veleshko, N. A. Budantseva, I. E. Veleshko, L. S. Gal'braikh, N. V. Sushinskaya
Publikováno v:
Fibre Chemistry. 44:83-89
Co-precipitation of 233UO2 2+, 152Eu3+, and 90Sr2+ on melanin isolated from the preparation Mikoton, a chitin—melanin glucan complex, was studied in solutions. It was shown that the degree of coprecipitation (α) of the radionuclides depended on th
Autor:
Yu. A. Teterin, E. V. Rumyantseva, A. Yu. Teterin, A. N. Veleshko, Kirill E. Ivanov, A. N. Levov, V. P. Varlamov, I. E. Veleshko, Konstantin I. Maslakov
Publikováno v:
Radiochemistry. 54:122-127
Interaction of uranium with low-molecular-weight sulfosuccinyl chitosan (SSLMWC) from sulfate solutions was studied by X-ray photoelectron spectroscopy. The interaction involves formation of complexes with the uranyl group on the SSLMWC surface. The
Autor:
V. V. Nikonorov, I. E. Veleshko, V. I. Lozinskii, L. V. Vladimirov, R. V. Ivanov, Sergey N. Mikhailov, P. A. Perminov, N. R. Kil’deeva
Publikováno v:
Fibre Chemistry. 43:426-432
With the goal of improving the sorption capacity of chitosan and expanding the range of elements that can be sorbed, we modified chitosan cryogels with pyridoxal-5′-phosphate. We studied the behavior of the sorption processes for copper and uranium
Autor:
L. A. Burmistrova, Valery P. Varlamov, A. V. Bakulin, V. P. Kurchenko, E. V. Rumyantseva, A. N. Levov, R. G. Khismatullin, N. I. Krivtsov, I. E. Veleshko
Publikováno v:
Russian Agricultural Sciences. 37:423-426
Samples of a chitin-melanin complex are produced from honeybee corpses and some of their physicochemical characteristics are determined. The interaction of the complexes with radionuclides 233U and 90Sr in solutions is studied. The dependence of the
Autor:
A. N. Veleshko, N. R. Kil’deeva, V. I. Lozinskii, R. V. Ivanov, L. S. Gal'braikh, Sergey N. Mikhailov, V. V. Nikonorov, E. V. Rumyantseva, I. E. Veleshko
Publikováno v:
Fibre Chemistry. 42:364-369
The efficacy of using chitosan cryogel modified with pyridoxal-5´-phosphate for extraction of 152,154Eu(III) from aqueous solutions was established. Enhancement of the sorption properties of CCTZ-PP in comparison to CCTZ is due to the possibility of
Publikováno v:
Radiochemistry. 51:484-489
Coprecipitation of 233U, 239Pu, 241Am, 152Eu, 90Sr, 90Y, and 60Co on chitosans of various molecular weights (MW) was studied. Low-molecular-weight chitosan (LMWC) with MW of 5 kDa (5 × 103 g mol−1) proved to be a more effective coprecipitant than
Publikováno v:
Radiochemistry. 51:490-495
New derivatives of low- and high-molecular-weight chitosan (LMWC and HMWC), containing various functional groups, were prepared. The solubility of the compounds in aqueous solutions at pH 1–10 and the sorption and complexation of radionuclides with
Autor:
I. E. Veleshko, A. N. Veleshko, D. S. Shaitura, E. V. Rumyantseva, S. A. Kulyukhin, N. A. Dmitrieva, K. V. Rozanov
Publikováno v:
Radiochemistry. 51:496-501
A composite sorbent based on spherically granulated chitosan modified with a mixed ferrocyanide K2Cu3[Fe(CN6)]2 (SGC-FC) was prepared. The sorbent is highly effective toward 137Cs. The physicochemical parameters of 137Cs+ sorption by this sorbent wer
Autor:
I. E. Veleshko, S. A. Kulyukhin
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 280:283-286
The sorption of 109Cd and 65Zn microquantities with NaX and NaA zeolites in the presence of divalent lanthanides (Ln2+) (Ln=Tm, Dy, and Nd) from tetrahydrofuran (THF) solutions was studied. It was found that in contrast to 137Cs+, 109Cd and 65Zn, as