TITLE

Simultaneous determination of trace uranium and vanadium in biological samples by radiochemical neutron activation analysis

AUTHOR(S)
Repinc, U.; Benedik, L.
PUB. DATE
April 2005
SOURCE
Journal of Radioanalytical & Nuclear Chemistry;Apr2005, Vol. 264 Issue 1, p77
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A radiochemical neutron activation analysis (RNAA) for simultaneous determination of uranium and vanadium in a single sample at trace levels is described. The method is based on post-irradiation wet-ashing and solvent extraction of vanadium with N-benzoyl-N-phenyl-hydroxylamine reagent. From the remaining aqueous phase, uranium is extracted into a toluene solution of tri-n-butyl phosphate. The chemical yields are determined spectrophotometrically for vanadium and by gamma-counting of the added natural uranium carrier for uranium. The method was evaluated by the analysis of reference materials and the results showed a good agreement with the certified values. The method was applied to the determination of vanadium and uranium in five military total diet samples in Slovenia.
ACCESSION #
16526074

 

Related Articles

  • Determination of vanadium in biological and environmental samples by RNAA with emphasis on quality control. Repinc, U.; Benedik, L.; Stibilj, V. // Journal of Radioanalytical & Nuclear Chemistry;Apr2005, Vol. 264 Issue 1, p39 

    In the present work an improvement of radiochemical neutron activation analysis for determination of nanogram levels of vanadium is described. The method is based on post-irradiation wet ashing and solvent extraction of vanadium with N-benzoyl-N-phenyl-hydroxylamine (BPHA) forming a violet...

  • Solvent extraction associated with activation analysis: A helpful tool. Paiva, A. P. // Journal of Radioanalytical & Nuclear Chemistry;Oct2004, Vol. 262 Issue 1, p135 

    The aim of this paper is to put in evidence the role played by solvent extraction when it is used as an analytical tool, in association with activation analysis, to avoid problematic interferences or to increase the detection limit of specific elements or groups of elements present in various...

  • Preconcentration and neutron activation analysis of thorium and uranium in natural waters. Valentini Ganzerli, M. T.; Maggi, L.; Cresp, V. Caramella // Journal of Radioanalytical & Nuclear Chemistry;Oct2004, Vol. 262 Issue 1, p143 

    Uranium and thorium were analyzed in commercial bottled waters and in fresh waters, such as tap water, by neutron activation analysis. The analysis was applied after a preconcentration step from a batch of 1-3 dm3 water under investigation. The adsorption was performed in the presence of a small...

  • Methods for quality control/quality assurance of k[sub 0]-assisted neutron activation analysis. De Corte, Frans // AIP Conference Proceedings;2001, Vol. 576 Issue 1, p495 

    A survey is given of methods that were developed and applied for controlling and assuring the quality of k[sub 0]-assisted neutron activation analysis. These methods are: 1. Parallel but independent determination, in several laboratories, of the fundamental nuclear data, leading to the detection...

  • Instrumental neutron activation analysis in geochemistry: Emphasis on spectral and uranium fission product interferences. Tshiashala, M. D. A. // Journal of Radioanalytical & Nuclear Chemistry;Sep2005, Vol. 265 Issue 3, p511 

    The accuracy of the analytical results may suffer from unsolved interferences both spectral or due to U fission products despite progress performed in electronics and informatics in instrumental neutron activation analysis. This contribution deals with the correction of spectral and U fission...

  • COMPARISON OF OBSERVED BODY RETENTION OF URANIUM IN NATURAL CONDITION IN AN AVERAGE INDIAN ADULT WITH THE VALUES PREDICTED BY THE ICRP BIOKINETIC MODE. Singh, I. S.; Jaiswal, P. D.; Nair, Sunia; P Vijayagopal; S. Bhati; Garg, S. P. // Radiation Protection Dosimetry;2008, Vol. 131 Issue 4, p425 

    The daily intake of natural uranium and its contents in the lungs, skeleton, liver and kidney of an Indian adult population group was estimated using radiochemical neutron activation analysis (RNAA). These data on daily intake (through inhalation and ingestion) were used to compute the uranium...

  • Quality assessment in a Brazilian laboratory performing k0-NAA. Bacchi, M.A.; Fernandes, E.A. De Nadai; França, E.J.; Bode, P. // Journal of Radioanalytical & Nuclear Chemistry;Sep2003, Vol. 257 Issue 3, p653 

    This work is focused at the demonstration of the overall adequacy of the procedures introduced in a Brazilian laboratory for conducting the k0-standardized NAA. Concentrations of 29 elements determined in certified reference materials of plants and geological matrices are evaluated. Most of the...

  • Application of neutron activation analysis for mercury species determination in scalp hair samples from Malaysia, Libya and Jordan. Sarmani, S. B.; Alakili, I. // Journal of Radioanalytical & Nuclear Chemistry;Oct2004, Vol. 262 Issue 1, p43 

    Neutron activation analysis was used to determine the levels of total mercury and methylmercury in hair samples obtained from 400 Malaysian (Kuala Lumpur), Libyan (Benghazi) and Jordanian (Amman) donors. Our results show that the level of total mercury in hair samples of the Malaysian group...

  • Determination of boron in water samples by chemical prompt gamma neutron activation analysis. Ramanjaneyulu, P.S.; Sayi, Y.S.; Nathaniel, T. Newton; Reddy, A.V.R.; Ramakumar, K.L. // Journal of Radioanalytical & Nuclear Chemistry;Aug2007, Vol. 273 Issue 2, p411 

    Boron concentration has been determined in groundwater samples, collected from Khuchch, Gujarat, India, by prompt gamma neutron activation analysis (PGNAA) after selective separation and pre-concentration by solvent extraction with 10% 2-ethyl hexane 1,3-diol in CHCl3. Solvent extraction...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics