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Fluorine determination in biological and environmental samples with INAA using fast neutrons from a p(19 MeV) + Be neutron generator

  • Jan KučeraEmail author
  • Milan Štefánik
  • Petr Veselka
Article
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Abstract

We present a new activation method based on the 19F(n,2n)18F reaction using fast neutrons produced by a p(19 MeV) + Be accelerator-driven fast neutron source providing continuous neutron spectrum up to 17 MeV with a neutron fluence rate of approximately 9 × 1010 cm−2 s−1 at a 12-µA proton beam current. We describe elimination of interferences in measurement of 18F, a pure positron emitter with T1/2 = 1.83 h. We present results of fluorine determination for several biological and environmental reference materials with the new procedure and compare them with those achieved by other methods in terms of limits of detection, accuracy and precision, where available.

Keywords

Fluorine determination Instrumental neutron activation analysis Fast neutrons Accelerator neutron source Biological and environmental samples 

Notes

Acknowledgements

This work was carried out within the Centre of Accelerator and Nuclear Analytical Methods (CANAM) Infrastructure supported by the Czech Ministry of Education, Youth and Sports (MEYS) Project LM2015056. The authors also thank to an anonymous referee for suggestions for improvement of the manuscript, especially for the comment on a possible upgrade of the sample irradiation environment.

References

  1. 1.
    Fluorides (2002) Environmental Health Criteria 227. WHO, GenevaGoogle Scholar
  2. 2.
    Ozsvaht DL (2009) Fluoride and environmental health: a review. Rev Environ Sci Biotechnol 8:59–79CrossRefGoogle Scholar
  3. 3.
    Konieczka P, Zygmunt B, Namiesnik J (2000) Comparison of fluoride ion-selective electrode based potentiometric methods of fluoride determination in human urine. Bull Environ Contam Toxicol 64:794–803CrossRefGoogle Scholar
  4. 4.
    Kwon S-M, Shin H-S (2014) Sensitive determination of fluoride in biological samples by gas chromatography–mass spectrometry after derivatization with 2-(bromomethyl)naphthalene. Anal Chim Acta 852:162–167CrossRefGoogle Scholar
  5. 5.
    Tarsoly G, Óvári M, Záray G (2010) Determination of fluorine by total reflection X-ray fluorescence spectrometry. Spectrochim Acta Part B 65:287–290CrossRefGoogle Scholar
  6. 6.
    Langenauer M, Krähenbühl U, Wytenbach A (1993) Determination of fluorine and iodine in biological materials. Anal Chim Acta 274:253–256CrossRefGoogle Scholar
  7. 7.
    Figi R, Lienemann P, Richner P (1995) Determination of traces of fluorine, chlorine, bromine, cadmium and lead in plastic materials. Toxicol Environ Chem 52:35–44CrossRefGoogle Scholar
  8. 8.
    Borges AR, Francois LL, Welz B, Carasek E, Vale MGR (2014) Determination of fluorine in plant materials via calcium mono-fluoride using high-resolution graphite furnace molecular absorption spectrometry with direct sample introduction. J Anal Atomic Spectrom 29:1564–1569CrossRefGoogle Scholar
  9. 9.
    Machado PM, Mores S, Pereira ER, Welz B, Carasek E, de Andrade JB (2015) Fluorine determination in coal using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis. Spectrochim Acta B 105:18–24CrossRefGoogle Scholar
  10. 10.
    Boschetti W, Dessuy MB, Pizzato AH, Vale MGR (2017) New analytical method for total fluorine determination in soil samples using high-resolution continuum source graphite furnace molecular absorption spectrometry. Microchem J 130:276–280CrossRefGoogle Scholar
  11. 11.
    Havránek V, Kučera J, Řanda Z, Voseček V (2004) Comparison of fluorine determination in biological and environmental samples by NAA, PAA and PIGE. J Radioanal Nucl Chem 259:325–329CrossRefGoogle Scholar
  12. 12.
    Krausová I, Mizera J, Řanda Z, Chvátil D, Krist P (2015) Nondestructive assay of fluorine in geological and other materials by instrumental photon activation analysis with a microtron. Nucl Instrum Methods B 342:82–86CrossRefGoogle Scholar
  13. 13.
  14. 14.
    Štefánik M (2015) Experimental determination of accelerator-driven neutron generators spectra. Dissertation Thesis, Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering (in Slovak) Google Scholar
  15. 15.
    Brede HJ, Dietze G, Kudo K, Schrewe UJ, Tancu F, Wen C (1989) Neutron yields from thick Be targets bombarded with deuterons or protons. Nucl Instrum Methods A 274:332–344CrossRefGoogle Scholar
  16. 16.
  17. 17.
    National Institute of Standards and Technology (1994) Report of Investigation, Reference Material 8414 Bovine Muscle Powder, GaithersburgGoogle Scholar
  18. 18.
    National Institute of Standards and Technology (2017) Certificate of Analysis, Standard Reference Material 1486 Bone Meal, GaithersburgGoogle Scholar
  19. 19.
    International Atomic Energy Agency (2000) Reference Sheet, Reference Material IAEA-Soil-7, Trace Elements in Soil, IAEA, ViennaGoogle Scholar
  20. 20.
    Pszonicki L, Hanna AN, Suschny O (1984) Report on intercomparison IAEA/Soil 7 of the determination of trace elements in soil, IAEA/RL/112. IAEA, ViennaGoogle Scholar
  21. 21.
    Dybczynski R, Polkowska-Motrenko H, Samczynski Z, Szopa Z (1991) Two new Polish geological-environmental reference materials: apatite concentrate (CTA-AC-1) and fine fly ash (CTA-FFA-1). Geostand Newslett 15:163–185CrossRefGoogle Scholar
  22. 22.

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Nuclear Physics InstituteCzech Academy of SciencesHusinec-ŘežCzech Republic

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