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Radiochemical determination of lead-210 in environmental water samples using Cerenkov counting

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Abstract

A relatively simple method has been developed for the determination of210Pb via its β-emitting daughter,210Bi. Lead-210 was separated from interfering elements as lead sulphate. The precipitate was dissolved in an alkaline solution of EDTA and the Cerenkov signal produced by the build-up of210Bi was counted 30 days after storage using tritium channel of a liquid scintillation counter. Cerenkov counting efficiency was found to be approximately 20%. A lower limit of detection of 5.1 mBq/1 (based on 3σ of the background with 500 minute counting time) was achieved. Chemical recoveries in the range of 70–100% were determined gravimetrically. Interference associated with currently used methods is avoided. Data from from both spiked samples and natural samples are presented.

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Authors and Affiliations

  1. Department of Radiation Protection and Nuclear Safety, Atomic Energy Comission of Syria, P.O. Box 6091, Damascus, Syria

    M. S. Al-Marri, A. Hamwi & H. Mikhallaty

Authors
  1. M. S. Al-Marri
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  2. A. Hamwi
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  3. H. Mikhallaty
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Al-Marri, M.S., Hamwi, A. & Mikhallaty, H. Radiochemical determination of lead-210 in environmental water samples using Cerenkov counting. J Radioanal Nucl Chem 219, 73–75 (1997). https://doi.org/10.1007/BF02040268

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  • DOI: https://doi.org/10.1007/BF02040268

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