Главная Новые поступления Описание Шлюз Z39.50

Базы данных


Труды сотрудников Института органического синтеза УрО РАН - результаты поиска

Вид поиска
Каталог книг и продолжающихся изданий
Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН
Сводный каталог отечественных периодических изданий, имеющихся в библиотеках УрО РАН
Каталог диссертаций и авторефератов диссертаций УрО РАН
Каталог препринтов УрО РАН (1975 г. - )
Имидж-каталог отечественных книг (до 2010 г.)
Имидж-каталог иностранных книг (до 2010 г.)
Алфавитно-предметный указатель (АПУ) ЦНБ УрО РАН
Публикации об УрО РАН
Изобретения уральских ученых
Интеллектуальная собственность (статьи из периодики)
Нанотехнологии
Демидовские премии
Гибель династии Романовых
История Урала
Личная библиотека С. В. Вонсовского
Книжная коллекция Шубиных
Труды Института высокотемпературной электрохимии УрО РАН
Труды Института истории и археологии УрО РАН
Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
Расплавы
Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИГД УрО РАН
Каталог библиотеки ИЭРиЖ УрО РАН
Электронная энциклопедия «Дискурсология»
Библиометрия
Область поиска
в найденном
 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)
Формат представления найденных документов:
полныйинформационныйкраткий
Отсортировать найденные документы по:
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.
   
   T 45

   
    Thiocarbamoyl chitosan: Synthesis, characterization and sorption of Au(III), Pt(IV), and Pd(II) [Text] / S. YU. Bratskaya, A. Yu. Ustinov, Yu. A. Azarova, A. V. Pestov // Carbohydrate Polymers. - 2011. - Vol. 85, № 4. - P854-861 : ил. - Bibliogr. : p. 860-861 (39 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Here we suggest a new method of chitosan sulfur derivatives (thiocarbamoylchitosans, TC-chitosans) synthesis via reaction in eutectic two-component system ammonium rodanide–thiourea that allows significant increase of substitution degrees at the reduced time and reagent consumption as compared to conventional synthetic procedures. The sorption properties of TC-chitosans with substitution degrees (DS) from 0.4 to 0.9 toward Au(III), Pt(IV), Pd(II) ions were studied in chloride solutions, including systems with 10 to 1000-fold excess of Fe(III), Cu(II), and Zn(II) over the precious metal ions content. The sorption capacities of TC-chitosans increase with DS and change in the row: Au(III) Pd(II) Pt(IV) ? Cu(II) Fe(III) Zn(II). The maximum sorption capacities of TC-chitosan with DS 0.9 for Pt(IV), Pd(II), and Au(III) were 1.24 mmol/g, 3.43 mmol/g, and 3.81 mmol/g, respectively. Characterization of precious metals oxidation states by the XPS method after the sorption on TC-chitosan revealed that the platinum and gold recovery occurred with reduction of Au(III) to Au(I)/Au(0) and Pt(IV) to Pt(II)????

\\\\Expert2\\nbo\\Carbohydrate Polymers\\2011, v. 85, p.854.pdf
Найти похожие
2.
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
Найти похожие
3.
Инвентарный номер: нет.
   
   T 45

   
    Thiocarbamoyl chitosan as a novel sorbent with high sorption capacity and selectivity for the ions of gold(III), platinum(IV), and palladium [Electronic resource] / A. V. Pestov, S. Yu. Bratskaya, A. Slobodyuk, V. A. Avramenko, Yu. G. Yatluk // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 7. - P1303-1306
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHITOSAN -- THIOCARBAMOYL CHITOSAN -- IONS OF GOLD(III)
Аннотация: Thiocarbamoyl chitosan (TCC) was synthesized by grafting thiourea on chitosan backbone in eutectic composition of ammonium thiocyanate—thiourea. Insoluble products with the amno group functionalization degree of 0.3–1.1 can be prepared by varying the conditions of polymer-analogous (synthesis in a gel) transformation. Structure of the synthesized chitosan derivatives was characterized by elemental analysis, diffuse reflectance infrared spectroscopy, and the solid state 13C NMR. Study of sorption properties of TCC shows high sorption capacity and selectivity for the ions of gold(III), platinum(IV), and palladium(II) as evidenced by results obtained at pH 2 in the presence of 100–1000-fold excess of iron(III), copper(II), zinc(II), and nickel(II). Sorption capacity of TCC for all ions increases with the increase in the degree of substitution and changes in the series: AuIII > PdII > PtIV

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (7), 1303-1306.pdf
Найти похожие
4.
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
Найти похожие
5.
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
Найти похожие
6.
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)

Найти похожие
7.
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.

Найти похожие
8.
Инвентарный номер: нет.
   
   Т 42

   
    Тиокарбамоилированные производные полиаминов для сорбционного извлечения золота, серебра и ртути из растворов тиосульфатного выщелачивания / Ю. О. Привар [и др.] // Природные опасности, современные экологические риски и устойчивость экосистем: VII Дружининские чтения: материалы Всероссийской научной конференции с международным участием. - Хабаровск : ОмегаПресс, 2018. - С. 75-79
ББК 24
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: We have suggested a one-step method for the synthesis of thi-ocarbamoyl derivatives of polyallylamine (TСPAA) and polyaminostyrene (TСPAS) in the eutectic melt thiourea/ammonium thiocyanate, that is more safe and simple in comparison with the known method of functionalization using carbon disulfide. The resulting derivatives are insoluble and can be used as sor-bents without additional cross-linking. Sorption properties of TCPAA and TCPAS toward gold, silver and mercury ions have been studied in solutions of ammonia-thiosulfate leaching of gold and silver-containing sludge of Chalgan experimental workshop, which are also contaminated with mercury. It was shown that both TCPAA and TCPAS are efficient sorbents for silver, while ef-fective recovery of gold and mercury is achieved only with low- and medium-substituted TCPAA.

Найти похожие
9.
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.

Найти похожие
10.
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

Найти похожие
 1-10    11-18 
 
Описание базы данных
Стандартный
По словарю
Расширенный
ГРНТИ-навигатор
Статистика обращений

Сиглы отделов ЦНБ УрО РАН


  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

  

Сиглы библиотек институтов и НЦ УрО РАН
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)
Яндекс.Метрика