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  • Title: Determination of uranium isotopes in food and environmental samples by different techniques: a comparison.
    Author: Forte M, Rusconi R, Margini C, Abbate G, Maltese S, Badalamenti P, Bellinzona S.
    Journal: Radiat Prot Dosimetry; 2001; 97(4):325-8. PubMed ID: 11878412.
    Abstract:
    The uranium concentration in 59 samples of bottled and tap water, mainly from northern Italy, was measured by different techniques. Results obtained by inductively coupled plasma mass spectrometry (ICP-MS), semiconductor alpha spectrometry and low level liquid scintillation counting with alpha/beta discrimination (LSC) have been compared. High resolution gamma spectrometry and semiconductor alpha spectrometry have been used to analyse uranium in a variety of organic and inorganic samples. Isotopic secular equilibrium in the 238U series may be lacking or hidden by auto-absorption phenomena, so caution should be used in evaluating gamma spectrometry data. Alpha spectrometry has also been used to ascertain the possible pollution from depleted uranium in the environment.
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