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 Найдено в других БД:Каталог книг и продолжающихся изданий (24)Каталог препринтов УрО РАН (1975 г. - ) (2)Интеллектуальная собственность (статьи из периодики) (1)Нанотехнологии (1)Труды Института высокотемпературной электрохимии УрО РАН (29)Труды сотрудников Института теплофизики УрО РАН (2)Расплавы (10)
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полныйинформационныйкраткий
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авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>K=GOLD<.>)
Общее количество найденных документов : 18
Показаны документы с 1 по 10
 1-10    11-18 
1.
Инвентарный номер: нет.
   


   
    A gold nanoparticle-based molecular self-assembled colorimetric chemosensor array for monitoring multiple organic oxyanions / J. Wang, J. Jiang, Y. Liu, G. V. Zyryanov // Processes. - 2022. - Vol. 10, № 7. - Ст. 1251
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHEMOSENSOR ARRAY -- GOLD NANOPARTICLES -- ORGANIC OXYANIONS
Аннотация: Determination of oxyanions is of paramount importance because of the essential role they play in metabolic processes involved in various aquatic environmental problems. In this investigation, a novel chemical sensor array has been developed by using gold nanoparticles modified with different chain lengths of aminothiols (AET-AuNPs) as sensing elements. The proposed sensor array provides a fingerprint-like response pattern originating from cross-reactive binding events and capable of targeting various anions, including the herbicide glyphosate. In addition, chemometric techniques, linear discrimination analysis (LDA) and the support vector machine (SVM) algorithm were employed for analyte classification and regression/prediction. The obtained sensor array demonstrates a remarkable ability to determine multiple oxyanions in both qualitative and quantitative analysis. The described methodology could be used as a simple, sensitive and fast routine analysis for oxyanions in both laboratory and field settings.

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2.
Инвентарный номер: нет.
   


   
    Effect of the degree of sulfoethylation of polyethylenimine on the selectivity of sorption of palladium(II) from binary solutions / E. I. Kapitanova, A. R. Sinelshchikova, Yu. S. Petrova [et al.] // Russian chemical bulletin. - 2021. - Vol. 70, № 6. - P1161-1166
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYETHYLENIMINE -- SULFOETHYLATION -- SORPTION -- PLATINUM(IV) -- PALLADIUM(II) -- GOLD(III)

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3.
Инвентарный номер: нет.
   
   F 33


   
    Features of sorption preconcentration of noble metal ions with sulfoethylated amino polymers / L. M. Alifkhanova, K. Y. Lopunova, A. A. Marchuk [и др.] // Russian journal of inorganic chemistry. - 2021. - Vol. 66, № 6. - С. 909-915
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Dependencies for the sorption of palladium(II), gold(III), and platinum(IV) chloro complexes from individual and binary solutions with sorbents based on sulfoethylated polyallylamine and poly(aminostyrene) have been obtained. It has been found that predominant sorption mechanism is complexation with functional groups of the sorbents for gold(III) and palladium(II) and ion exchange for platinum(IV). It has been shown that increase in the sulfoethylation degree of aminopolymer matrix leads to decrease of platinum(IV) sorption and therefore, to increase in palladium(II) sorption selectivity relative to this ion. This effect is the largest for the sorbents based on polyallylamine. The conditions of quantitative desorption of the studied metals from sorbent surface have been determined. The sorption of gold(III) by the sorbent based on polyallylamine has been shown to be complicated by gold(III) reduction in sorbent phase.

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4.
Инвентарный номер: нет.
   
   I-55


   
    Imidazole-containing chitosan derivative: a new synthetic approach and sorption properties [Electronic resource] / A. V. Pestov, S. YU. Bratskaya, Yu. A. Azarova, Yu. G. Yatluk // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2012. - Vol.61, №10. - С. 1959-1964. - Bibliogr. : p. 1963-1964 (33 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN -- SORBENT -- GOLD(III)
Аннотация: A novel method for the synthesis of a hetaryl containing chelate amino polymer, namely, N (4(5) imidazolylmethyl)chitosan (IMC), with a degree of substitution up to 0.3 was pro posed. The "synthesis in gel" approach involves direct substitution of the hydroxyl group in 4(5) imidazolylmethanol. The structures of these polymers were confirmed by 1H NMR data. For sorption studies, IMC samples were crosslinked with epichlorohydrin and diglycidyl ethers of ethylene glycol and diethylene glycol. The degrees of swelling and sorption properties of the polymers largely depend on the crosslinking agent and the degree of crosslinking. The sorption capacities of IMC for AuIII, PtIV, and PdII ions are higher than those of the nonmodified polymer. The extraction of noble metal ions from chloride solutions becomes more selective with increasing degree of crosslinking. The sorption capacity of IMC for CoII and NiII ions is higher than those of chitosan and its known N heterocyclic derivatives

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2012, 61 (10), 1959-1964.pdf
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5.
Инвентарный номер: нет.
   
   T 44


    Marakushev, A. A.
    The nature of gold in carbonaceous suites [Text] / A. A. Marakushev, V. L. Rusinov // Doklady Earth Sciences. - 2005. - Vol. 401A, № 3. - P424-428
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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6.
Инвентарный номер: нет.
   
   M 61


   
    Metasomatic alterations in Precambrian metabasites of the Salla-Kuolajarvi graben near the Maiskoe gold field, northern Karelia [Text] / A. A. Vol'fson , V. L. Rusinov, T. L. Krylova, A. V. Chugaev // Petrology. - 2005. - Vol. 13, № 2. - P161-186
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DEPOSITS -- GOLD -- INCLUSIONS -- MAGNESIUM PRINTING PLATES -- PETROLOGY -- QUARTZ -- ROCKS -- VANADIUM
Аннотация: The metasomatic processes in Precambrian metabasites of the Salla-Kuolajarvi in the ore field of the Maiskoe gold-quartz deposit was examined. A detailed marked characterization of the the gumbeites found in the Precambrian of the Baltic Shield was also discussed. It was observed that the gumbeitization and ore deposition differed from the earlier processes by an increase in the CO2 fugacity and the activities of K2 and BAO in the solution. The temperature of the process was determined by fluid inclusions and chlorite geothermometers was 330-380°C for the early propylization.????

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7.
Инвентарный номер: нет.
   
   M 61


   
    Metasomatic mineral composition at the Sukhoi Log gold ore deposit: Evidence for its genetic relation to mafic-ultramafic magmatism [Text] / V. L. Rusinov, O. V. Rusinova, S. E. Borisovskii, E. I. Alysheva // Doklady Earth Sciences. - 2005. - Vol. 405A, № 9. - P1368-1372
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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8.
Инвентарный номер: нет.
   
   N 10


   
    N-(2-(2-pyridyl)ethyl)chitosan: Synthesis, characterization and sorption properties / S. YU. Bratskaya, Yu. A. Azarova, E. G. Matochkina, M. I. Kodess, Yu. G. Yatluk, A. V. Pestov // Carbohydrate Polymers. - 2012. - Vol. 87, № 1. - С. 869-875
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN N-HETEROCYCLIC DERIVATIVES -- SELECTIVE ADSORPTION -- PYRIDINE DERIVATIVES
Аннотация: The method of producing N-2-(2-pyridyl)ethylchitosan (PE-chitosan) with substitution degrees (DS) up to 1.2 has been developed using the "synthesis in gel" approach for direct addition reaction between 2-vynilpyridine and chitosan. Investigation of sorption properties has revealed significantly higher affinity of pyridylethyl fragments to Pt(IV)) and Pd(II) ions compared to the unsubstituted amino groups of chitosan. The maximum sorption capacities of PE-chitosan in 0.1 M HCl solution were estimated as 5.56 mmol/g for Au(III), 3.67 mmol/g for Pd(II), and 2.75 mmol/g for Pt(IV). Sorption capacities of PE-chitosan for transition metal ions at pH 4-8 were 1.5-2.6 higher than those of chitosan with the highest values attained for Cu(II) and Ag(I) ions - 1.50 mmol/g and 1.53 mmol/g, respectively. The PE-chitosan application for preconcentration of Au(III) with subsequent elution with HCl/thiourea mixtures was proved to be efficient for atomic absorption spectroscopy analysis of multi-component solutions with low gold content

\\\\Expert2\\nbo\\Carbohydrate Polymers\\2012, v. 87, p.869.pdf
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9.
Инвентарный номер: нет.
   
   N 10


   
    N-(2-(2-pyridyl)ethyl)chitosan: synthesis, characterization and sorption properties [Text] / S. YU. Bratskaya, Yu. A. Azarova, E. G. Matochkina, M. I. Kodess, Yu. G. Yatluk, A. V. Pestov // Carbohydrate Polymers. - 2011. - In Press, Accepted Manuscript, Availabe online 31 Augist 2011
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The method of producing N-2-(2-pyridyl)ethylchitosan (PE-chitosan) with substitution degrees (DS) up to 1.2 has been developed using the “synthesis in gel” approach for direct addition reaction between 2-vynilpyridine and chitosan. Investigation of sorption properties has revealed significantly higher affinity of pyridylethyl fragments to Pt(IV)) and Pd(II) ions compared to the unsubstituted amino groups of chitosan. The maximum sorption capacities of PE-chitosan in 0.1 M HCl solution were estimated as 5.56 mmol/g for Au(III), 3.67 mmol/g for Pd(II), and 2.75 mmol/g for Pt(IV). Sorption capacities of PE-chitosan for transition metal ions at pH 4-8 were 1.5-2.6 higher than those of chitosan with the highest values attained for Cu(II) and Ag(I) ions–1.50 mmol/g and 1.53 mmol/g, respectively. The PE-chitosan application for preconcentration of Au(III) with subsequent elution with HCl/thiourea mixtures was proved to be efficient for atomic absorption spectroscopy analysis of multi-component solutions with low gold content

\\\\Expert2\\nbo\\Carbohydrate Polymers\\2011, Article inPress, 31 August.pdf
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10.
Инвентарный номер: нет.
   
   O-83


   
    Oscillatory zoning in goldfieldite from epithermal gold deposits [Text] / O. Yu. Plotinskaya, V. A. Kovalenker, V. L. Rusinov, R. Seltmann // Doklady Earth Sciences. - 2005. - Vol. 403, № 5. - P799-802
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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