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Galina V. Myasoedova

Bio: Galina V. Myasoedova is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Sorption & Nitric acid. The author has an hindex of 13, co-authored 50 publications receiving 612 citations.

Papers
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TL;DR: The structures of two ionic liquids were confirmed by X-ray analysis, revealing the strong intramolecular hydrogen bond formed by the acidic protons of the heterocycle and oxygen atom either of the P=O or C=O group, depending on the anion nature.
Abstract: The general approach to a novel class of functionalized ionic liquids 4–6 bearing grafted diphenylcarbamoylmethylphosphine oxide complexing groups in the cation has been elaborated. The synthetic route comprises the preparation of the intermediate (diphenylphosphorylmethylcarbamoyl)propylimidazole 3, followed by sequential quaternization by alkyl halides (chlorides or bromides) and anionic exchange in the case of ionic liquids bearing the hexafluorophosphate anion. The structures of two ionic liquids were confirmed by X-ray analysis, revealing the strong intramolecular hydrogen bond formed by the acidic protons of the heterocycle and oxygen atom either of the PO or CO group, depending on the anion nature. In neutral media, these ionic ligands form complexes ML2 with europium chloride or europium nitrate via an O,O-bidentate mode similar to known neutral CMPO compounds. The solid phase extractants prepared by immobilization of these FILs on solid matrixes possess sorption activity towards actinides and rare-earth elements in nitric acid solutions.

76 citations

Journal ArticleDOI
01 Dec 1985-Talanta
TL;DR: The properties of the new ehelate-forming "POLYORGS" sorbents for concentration of noble metals are discussed and some methods of noble metal determination after preliminary concentration of POLyORGS sorbent are given.

68 citations

Journal ArticleDOI
TL;DR: It is shown that phosphonium-type ionic liquids (ILs) can be used for preparation of novel solid-phase extractants and the possibility of retaining ligands on the solid phases by means of ILs to prepare the complexing solid- phase extractants has been demonstrated.
Abstract: That phosphonium-type ionic liquids (ILs) can be used for preparation of novel solid-phase extractants has been shown. The conditions of IL immobilization on the different matrices (polyacrilonitrile, Amberlite XAD-7, hyper cross-linked polystyrene, and multi-walled carbon nanotubes) were determined. The solid-phase extraction of Pt(IV) from 1-2 M HCl and Pu(IV) from 3 M HNO(3) has been investigated. The possibility of retaining ligands on the solid phases by means of ILs to prepare the complexing solid-phase extractants has been demonstrated.

54 citations

Journal ArticleDOI
TL;DR: This review describes the basic types of available sorbents, preconcentration procedures and preparations of the sorbent to the subsequent determination of noble metals and specific features of instrumental techniques and examples of ETAAS, FAAS, I CP-AES, ICP-MS determinations after the sorption preconcentrations are considered.
Abstract: Nowadays much attention is being paid to the determination of trace amounts of noble metals in geological, industrial, biological and environmental samples. The most promising techniques, such as inductively coupled plasma atomic emission spectrometry (ICP-AES), inductively coupled plasma mass spectrometry (ICP-MS) and electrothermal atomic absorption spectrometry (ETAAS) are characterized by high sensitivity. However, the accurate determination of trace noble metals has been limited by numerous interferences generated from the presence of matrix elements. To decrease, or eliminate, these interferences, the sorption preconcentration of noble metals is often used prior to their instrumental detection. A great number of hyphenated methods of noble metal determination using sorption preconcentration have been developed. This review describes the basic types of available sorbents, preconcentration procedures and preparations of the sorbent to the subsequent determination of noble metals. The specific features of instrumental techniques and examples of ETAAS, FAAS, ICP-AES, ICP-MS determinations after the sorption preconcentration of noble metals are considered. The references cited here were selected mostly from the period 1996 - 2006.

51 citations

Journal ArticleDOI
TL;DR: A review of solid-phase extractants for radionuclide preconcentration and separation is presented in this paper, where the possibilities of using carbon nanotubes and ionic liquids for preparing new solid phase extractants are discussed.
Abstract: A review of solid-phase extractants for radionuclide preconcentration and separation is presented. Examples of solid-phase extractants prepared by impregnation of various supports with compounds used in liquid extraction are considered. The possibilities of using carbon nanotubes and ionic liquids for preparing new solid-phase extractants are discussed. Experimental data on sorption recovery of actinides, europium, and palladium from nitric acid solutions with solid-phase extractants prepared by impregnation of carbon nanotubes and polymeric supports with ionic liquids and ligands are presented.

45 citations


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[...]

08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

Journal ArticleDOI
19 Apr 2004-Talanta
TL;DR: Increased utilization of mechanically stable synthetic matrices particularly silica gel as a solid support and its surface modification by impregnation of organic ligands directly or covalent grafting through spacer unit for extractive concentration of trace elements are highlighted in the present article.

860 citations

Journal ArticleDOI
TL;DR: Ionic Liquids-Based Extraction: A Promising Strategy for theAdvanced Nuclear Fuel Cycle Xiaoqi Sun, Huimin Luo, and Sheng Dai.
Abstract: Ionic Liquids-Based Extraction: A Promising Strategy for theAdvanced Nuclear Fuel Cycle Xiaoqi Sun, Huimin Luo, and Sheng Dai* Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37916, United States State Key Laboratory of Rare Earth Resource Utilization, Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China

719 citations

Journal ArticleDOI
TL;DR: The objective of this paper is to develop a better understanding of the techniques for the remediation of soils polluted with radionuclides (uranium in particular), considering the chemical forms of uranium, including depleted uranium (DU) in soil and other environmental media, their characteristics and concentrations.

480 citations

Journal ArticleDOI
01 May 1990-Talanta
TL;DR: This review is concerned mainly with the applications of chelating polymeric resins for the separation and concentration of trace metals from oceans, rivers, streams and other natural systems.

409 citations