Validated analytical methods

  
Tested and validated analytical procedures are important tools for the production of reliable, comparable and ‘fit for purpose’ analytical measurements. However, finding and choosing a procedure can be a challenge due to a wide variety of technologies available and the rapidity of developments in the field.

Therefore, since 2004 the IAEA’s programme related to ALMERA has included activities aimed towards the development of a set of procedures for determination of radionuclides in environmental samples. It is intended that as these are developed, they will be made available to laboratories wishing to use procedures that have been validated by a large number of laboratories and therefore could be regarded as having been widely tested.

The following table reports the most recent outcomes of ALMERA’s activities aimed towards the development of a set of procedures for determination of radionuclides in environmental samples, both for routine environmental monitoring and emergency monitoring. The number between brackets is related to the corresponding IAEA publication available for download below the table.

Sample matrix

Nuclides

Pu isot.

241Am

90Sr

210Po

210Pb

226+228Ra

U

Th

Aerosol

O(4)

O(4)

O(4)

         

Soil/sediment

O(4)/O(1)

O(4)/O(1)

O(4)

         

Terrestrial surface water

     

O(2)

 

O(5)

   

Milk

   

O(6)

         

Phosphogypsum

     

O(3)

O(3)

O(3)

O(3)

O(3)

O: Routine procedure for environmental monitoring
O: Rapid method for emergency monitoring

  1. A procedure for the rapid determination of Pu isotopes and Am-241 in soil and sediment samples by alpha spectrometry, IAEA Analytical Quality in Nuclear Applications Series No. 11, 2009 (download report (pdf))
  2. A procedure for the determination of Po-210 in water samples by alpha spectrometry, IAEA Analytical Quality in Nuclear Applications Series No. 12, 2009 (download report (pdf))
  3. A procedure for the sequential determination of Po-210, Pb-210, Th, U and Ra-226 in phosphogypsum by liquid scintillation counting and alpha spectrometry, submitted to IAEA Analytical Quality in Nuclear Applications Series
  4. A combined procedure for determination of plutonium isotopes, Am-241 and Sr-90 in environmental samples, submitted to IAEA Analytical Quality in Nuclear Applications Series
  5. Procedure for the rapid determination of Ra-226 and Ra-228 in drinking water by prompt liquid scintillation counting, submitted to IAEA Analytical Quality in Nuclear Applications Series
  6. A procedure for rapid simultaneous determination of Sr-89 and Sr-90 in milk using Cerenkov and scintillation counting, in preparation

The following review report is also available as an IAEA Analytical Quality in Nuclear Applications Series document:

  • Determination of radium isotopes in environmental samples, Analytical Quality in Nuclear Applications Series No. 19, 2010 (download report (pdf))
  • Rapid Simultaneous Determination of 89Sr and 90Sr in Milk: A Procedure Using Cerenkov and Scintillation Counting, Analytical Quality in Nuclear Applications Series No. 27, 2013 (download report (pdf))>

Bibliographic references of related ALMERA publications in journals are given below:

Reviews

  • Determination of 210Po in environmental materials: A review of analytical methodology, Applied Radiation and Isotopes, 65, 267-279 (2007)
  • Determination of Pu isotope concentrations and isotope ratio by ICP-MS: a review of analytical methodology, Journal of Analytical. Atomic Spectrometry, 22, 827-841 (2007)
  • Determination of Pu isotopes by alpha-spectrometry: a review of analytical methodology, Journal of Radioanalytical and. Nuclear Chemistry, 283, 203-223 (2010)
  • Determination of 241Am by alpha-spectrometry: a review of analytical methodology, Journal of Radioanalytical and. Nuclear Chemistry, 284, 341-366 (2010)
  • Determination of radiostrontium; a review of analytical methodology, Applied Radiation and Isotopes, 68, 2306-2326 (2010)

Research articles:

  • Development and application of an on-line sequential injection system for the separation of Pu, 210Po and 210Pb from environmental samples, Applied Radiation and Isotopes, 66, 223-230 (2008)
  • Quantification of measurement uncertainty in the sequential determination of 210Pb and 210Po by liquid scintillation counting and alpha-particle spectrometry, Accreditation and Quality Assurance, 13, 691-701 (2008)
  • Method validation of a procedure for determination of 210Po in water using DDTC solvent extraction and Sr-resin, Journal of Radioanalytical and. Nuclear Chemistry, 279, 639-646 (2009)
  • Development of extraction chromatographic separation procedures for the simultaneous determination of actinides, Radiochimica Acta, 97, 9-16 (2009)
  • Validation of rapid method for the determination of radiostrontium in milk, Applied Radiation and Isotopes, 67, 786-793(2009)
  • Improved rapid determination of 89Sr and 90Sr in milk using Cerenkov and scintillation counting, in Proceedings of the Conference on Advances in Liquid Scintillation Spectrometry, Paris, France, (2010)

 

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