Narodna in univerzitetna knjižnica, Ljubljana (NUK)
Naročanje gradiva za izposojo na dom
Naročanje gradiva za izposojo v čitalnice
Naročanje kopij člankov
Urnik dostave gradiva z oznako DS v signaturi
  • Tracer studies on Sr resin and determination of [sup]90Sr in environmental samples
    Jakopič, Rožle ; Benedik, Ljudmila
    In this work various tracer experiments were performed to investigate the elution behaviour of some radionuclides on Sr resin, martix effects of calciumand potassium and the resin capacity for ... strontium. None of the studiedradionuclides interfered with the separation of strontium all were washed out with 3M HNO3 before the elution step with water, except barium. Barium and strontium were separated using 8M HNO3. The maximum resin capacity for strontium was 8.1 mg of Sr/g of Sr resin. Up to 2g of calcium and 200 mg of potassium can be loaded on the Sr column (3 g Sr. spec) without decrease instrontium recovery. The separation procedure using Sr resin was tested on soil samples spiked with [sup]90Sr standard solutions and on reference materials. All results obtained by this method gave good agreement. Counting sources were prepared by weighing SrC[sub]2O[sub]4 on a planchet. The [sup]90Sr content was measured with a proportional gas flow beta counter aftersecular equilibrium between [sup]90Sr and [sup]90Y was reached. The chemical recovery was determined gravimetrically and was always higher yhan 80%.
    Vir: Acta chimica slovenica. - ISSN 1318-0207 (Vol. 52, no. 3, 2005, str. 297-302)
    Vrsta gradiva - članek, sestavni del
    Leto - 2005
    Jezik - angleški
    COBISS.SI-ID - 19339815

    Povezava(-e):

    Digitalna knjižnica Slovenije - dLib.si

vir: Acta chimica slovenica. - ISSN 1318-0207 (Vol. 52, no. 3, 2005, str. 297-302)

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