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Fallout monitoring of waters

II. Radiochemical determination of cerium-144, caesium-137, strontium-89,90 and barium-140 by ion-exchange

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Summary

A method for the rapid determination of 144Ce, 137Cs, 89Sr, 90Sr and 140Ba in surface-waters and atmospheric water precipitations by ion-exchange is presented. It can be applied to samples with total calcium-magnesium content up to 110 meq. The limit of detection amounts to 0,005 pCi/l for 144Ce, 0.006 pCi/l for 137Cs, 0.004 pCi/l for 90Sr and 0.006 pCi/l for 140Ba with a 30 l sample. These sensivities can be improved for a further few times using a battery of columns.

Zusammenfassung

Zur Bestimmung von 144Ce, 137Cs, 89Sr, 90Sr und 140Ba in Oberflächenwasser und atmosphärischen Wasser-Niederschlägen wird eine schnelle Ionenaustauschermethode vorgeschlagen, die auf Proben mit einem Ca-Mg-Gesamtgehalt bis zu 110 mVal anwendbar ist. Bei Anwendung einer 30 l-Wasserprobe beträgt die untere Nachweisgrenze 0,005 pCi/l für 144Ce, 0,006 pCi/l für 137Cs, 0,004 pCi/l für 90Sr und 0,006 pCi/l für 140Ba. Mit einer Batterie von Kolonnen können diese Nachweisgrenzen noch herabgesetzt werden.

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References

  1. Osmond, R. D. G., T. W. Evett, J. W. Arden, M. B. Lovett, and B. Swenney: A.E.R.E.-AM 84, Harwell 1961.

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Authors and Affiliations

  1. Nuclear Institute “J. Stefan”, Ljubljana

    M. Senegačnik & Š. Paljk

  2. Department of Mining and Metallurgy, The University of Ljubljana, Yugoslavia

    M. Senegačnik & Š. Paljk

Authors
  1. M. Senegačnik
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  2. Š. Paljk
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Additional information

I. Mitteilung: diese Z. 244, 306 (1969).

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Senegačnik, M., Paljk, Š. Fallout monitoring of waters. Z. Anal. Chem. 244, 375–379 (1969). https://doi.org/10.1007/BF00536923

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  • DOI: https://doi.org/10.1007/BF00536923

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