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Low-level determination of silicon in biological materials using radiochemical neutron activation analysis

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F05%3A00020906" target="_blank" >RIV/61389005:_____/05:00020906 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Low-level determination of silicon in biological materials using radiochemical neutron activation analysis

  • Original language description

    A new radiochemical neutron activation analysis (RNAA) method has been developed for low-level determination of Si in biological materials, which is based on the Si-30(n,gamma)Si-31 nuclear reaction with thermal neutrons. The radiochemical separation consists of an alkaline-oxidative decomposition followed by distillation of SiF4. Nuclear interferences, namely that of the P-31(n,p)Si-31 with fast neutrons, have been examined and found negligible only when irradiation is carried out in an extremely well-thermalized neutron spectrum, such as available at the NIST reactor. The RNAA procedure yields excellent radiochemical purity of the separated fractions, which allows the measurement of the beta(-)-activity of the Si-31 by liquid scintillation counting.

  • Czech name

    Stanovení nízkých koncentrací křemíku radiochemickou neutronovou aktivační analýzou

  • Czech description

    Byla vyvinuta nová metoda radiochemické neutronové aktivační analýzy (RNAA) pro stanovení nízkých koncentrací Si v biologických materiálech založená na využití reakce 30Si(n,?)31Si s tepelnými neutrony. Radiochemická separace spočívá v alkalicko-oxidativním tavení vzorků a destilaci SiF4 a poskytuje frakce s vysokou radiochemickou čistotou. Byly stanoveny obsahy Si na úrovni jednotek až stovek ?g/g v řadě biologických referenčních materiálů a porovnány s literárními hodnotami.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BG - Nuclear, atomic and molecular physics, accelerators

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA202%2F03%2F0891" target="_blank" >GA202/03/0891: Research centre using thermal neutrons</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Radioanalytical and Nuclear Chemistry

  • ISSN

    0236-5731

  • e-ISSN

  • Volume of the periodical

    263

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    HU - HUNGARY

  • Number of pages

    6

  • Pages from-to

    811-816

  • UT code for WoS article

  • EID of the result in the Scopus database