Determination of Fluorine in Reference Materials by chopped-beam Cold Neutron Prompt Gamma-ray Activation Analysis (CB-CNPGAA)

Published

October 14, 2024

Author(s)

Rick Paul, Huaiyu Chen-Mayer

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

Download Paper

https://doi.org/10.1007/s10967-024-09807-w

Local Download

Keywords

prompt gamma-ray activation analysis, cold neutrons, beam chopper, chopped beam, reference materials, fluorine analysis

Citation

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 October 27, 2025)