Paul, R.
and Chen-Mayer, H.
(2024),
Determination of Fluorine in Reference Materials by chopped-beam Cold Neutron Prompt Gamma-ray Activation Analysis (CB-CNPGAA), Journal of Radioanalytical and Nuclear Chemistry, [online], https://doi.org/10.1007/s10967-024-09807-w, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=957873
(Accessed March 24, 2025)
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Determination of Fluorine in Reference Materials by chopped-beam Cold Neutron Prompt Gamma-ray Activation Analysis (CB-CNPGAA)
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Abstract
A method is described for determination of fluorine in reference materials by chopped beam cold neutron prompt gamma-ray activation analysis (CB-CNPGAA). The chopper cycle is set to 11 s on/off to match the t1/2 of 20F. To reduce systematic error, the F mass is measured as the ratio to a comparator element, either Ca or Cl. The F mass fraction is then calculated by multiplying this ratio by the mass fraction of the comparator element. The method is used to measure F in SRMs 1486 Bone Meal, 1400 Bone Ash, 1566a Oyster Tissue, and 2695 Fluorine in Vegetation.Citation
Journal of Radioanalytical and Nuclear Chemistry
Volume
334
Issue
1
Pub Type
Journals
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Keywords
prompt gamma-ray activation analysis, cold neutrons, beam chopper, chopped beam, reference materials, fluorine analysis
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Created October 14, 2024, Updated February 14, 2025