Determination of fluorine in reference materials by chopped-beam cold neutron prompt gamma-ray activation analysis (CB-CNPGAA)

被引：0

作者：

Paul, Rick L. ^{[1
]}

Chen-Mayer, H. Heather ^{[1
]}

机构：

[1] NIST, Chem Sci Div, 100 Bur Dr, Gaithersburg, MD 20899 USA

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2025年 / 334卷 / 01期

关键词：

Prompt gamma-ray activation analysis; Cold neutrons; Beam chopper; Chopped beam; Reference materials; Fluorine analysis; SCATTERING; STANDARDS; HYDROGEN; BONES; TEA;

D O I：

10.1007/s10967-024-09807-w

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页码：689 / 696

页数：8

共 22 条

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