Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "techniki łączone" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-4 z 4
    Tytuł:
    Analityka specjacyjna wybranych metali i metaloidów - arsen
    Autorzy:
    Michalski, R.
    Szopa, S.
    Jabłońska, M.
    Łyko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/273732.pdf
    Data publikacji:
    2012
    Wydawca:
    Roble
    Tematy:
    arsen
    techniki łączone
    analityka specjacyjna
    arsenic
    hyphenated techniques
    speciation analysis
    Źródło:
    LAB Laboratoria, Aparatura, Badania; 2012, 17, 2; 6-14
    1427-5619
    Pojawia się w:
    LAB Laboratoria, Aparatura, Badania
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analityka specjacyjna wybranych metali i metaloidów - antymon i tal
    Autorzy:
    Michalski, R.
    Szopa, S.
    Jabłońska, M.
    Łyko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/273919.pdf
    Data publikacji:
    2012
    Wydawca:
    Roble
    Tematy:
    antymon
    tal
    analiza specjacyjna
    techniki łączone
    antimony
    thallium
    speciation analysis
    hyphenated techniques
    Źródło:
    LAB Laboratoria, Aparatura, Badania; 2012, 17, 3; 26-33
    1427-5619
    Pojawia się w:
    LAB Laboratoria, Aparatura, Badania
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanocząstki tlenku tytanu(IV) : zastosowanie w produktach użytkowych, badania właściwości i oznaczanie techniką spektrometrii mas z plazmą indukcyjnie sprzężoną pracującą w trybie pojedynczej cząstki
    Titanium dioxide nanoparticles : application in consumer products, study of properties and determination by single particle inductively coupled plasma – mass spectrometry
    Autorzy:
    Gruszka, Jakub
    Malejko, Julita
    Godlewska-Żyłkiewicz, Beata
    Powiązania:
    https://bibliotekanauki.pl/articles/172064.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    nanocząstki tlenku tytanu(IV)
    rozdzielanie
    techniki łączone
    titanium dioxide nanoparticles
    separation
    hyphenated techniques
    Opis:
    The rapid growth in the production and use of nanomaterials is observed in recent years. Nanoparticles of titanium dioxide (TiO2NPs) are one of the most frequently used nanomaterials. Sunscreens, food additives, food contact materials and textiles are the major fields of current application of TiO2NPs. Due to increasing use of nanomaterials in daily life and thus increasing exposure to them, concerns have been raised about their safety. Likely routes of human exposure to released TiO2NPs as well as their health and environmental effects are presented in this paper. At present, our knowledge about the risk of nanomaterials is incomplete. However, it is known that toxicity of nanoparticles depends on their size, shape, crystal structure, surface morphology, surface area, charge, concentration and solubility (the possibility of dissolution into ionic forms). Therefore, it is necessary to use several complementary analytical techniques to fully characterize the NPs. Common approaches used for the characterization of nanomaterials include microscopy based techniques e.g. transmission electron microscopy (TEM), X-ray techniques e.g. X-ray diffraction (XRD), methods based on optical properties e.g. dynamic light scattering (DLS). Separation of nanoparticulate and ionic forms of metal can be accomplished using chromatographic techniques (such as high performance liquid chromatography (HPLC), size exclusion chromatography (SEC), hydrodynamic chromatography (HDC)) or capillary electrophoresis (CE). Size-resolved NPs and dissolved (ionic) fractions can be further characterized by on-line detectors, such as ICP MS. Recently, single particle inductively coupled plasma mass spectrometry (sp ICP MS) has been gaining increasing attention as a technique for detection, characterization, and quantification of nanoparticles. This technique provides information on individual particles, including particle size, number size distribution, particle number concentration and mass concentration. In addition, sp ICP MS can distinguish dissolved and nanoparticulate forms of an element. The fundamentals, advantages and limitations of this technique, as well as its application for the characterization and quantification of TiO2NPs in different matrices (consumer products, food and environmental samples) are reviewed in this paper.
    Źródło:
    Wiadomości Chemiczne; 2019, 73, 5-6; 367-400
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanosrebro : zastosowanie, migracja i metody oznaczania
    Nanosilver : uses, migration and methods of determination
    Autorzy:
    Malejko, J.
    Godlewska-Żyłkiewicz, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/171890.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Chemiczne
    Tematy:
    nanocząstki srebra
    migracja
    biodostępność
    rozdzielanie
    techniki łączone
    silver nanoparticles
    migration
    bioavailability
    separation
    hyphenated techniques
    Opis:
    The rapid growth in the commercial application of silver nanoparticles (AgNPs) will certainly increase the exposure to these metals among humans and in the environment. Nano-size silver particles have a broad spectrum of antimicrobial activity and therefore are incorporated into various materials, including medical textiles, which claim to prevent infection, as well as more common textiles, like anti-odour sportswear, underwear, socks and gloves. On the market there is also a variety of home consumer products claiming to contain nanosilver, for example disinfecting sprays (to disinfect hard surfaces, towels, sheets, and clothing), kitchen cutting boards, washing machines, refrigerators, dishwashers, pillows and mattresses, toothbrushes, toilet seats, water filters, and cosmetics. Nanosilver is added to food contact materials to preserve the packaged food for a particularly long period of time by inhibiting the growth of microbes. There is a number of in vitro studies showing cytotoxic effects and genotoxic DNA damaging capacity of AgNPs to a variety of mammalian cell types [24]. However, there are only a few in vivo studies on their genotoxicity. Likely routes of human exposure to released nanoparticles include inhalation, ingestion and dermal penetration. Evaluation of the health impact of AgNPs requires information on how readily and in what forms this substance can be released from the material. At present, the availability of such data is limited (Tab. 1). Size of metal-based nanoparticles is an important factor determining their physical and chemical properties as well as their bioavailability and toxicity. The methods used for the size characterisation of AgNPs in different matrices (consumer products, biological and environmental samples) (Tab. 2), as well as for speciation analysis of various forms of silver, namely AgNPs and silver ions, are reviewed in this paper. Off-line methods such as centrifugal ultrafiltration, (ultra)centrifugation, dialysis, and cloud point extraction are used in order to distinguish between nanoparticles and dissolved forms of silver. Field-flow fractionation (FFF) in different modes is used for nanoparticle size dependent separation [50]. Size-resolved AgNPs fractions are further characterised by on-line detectors, such as UV-Vis, ICP OES or ICP MS. ICP MS in single-particle detection mode is used for simultaneous determination of nanosilver and silver ions [38]. The application of capillary electrophoresis [40] and liquid chromatography [41, 42] for the separation of nano and ionic forms of silver is also discussed in this work.
    Źródło:
    Wiadomości Chemiczne; 2015, 69, 9-10; 847-867
    0043-5104
    2300-0295
    Pojawia się w:
    Wiadomości Chemiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies