FTIR Analysis Method for Purity Analysis of Gaseous UF6 at Low Pressure

In order to establish a method for quantitative analysis of the purity of gaseous Uranium hexafluoride using Fourier infrared spectroscopy under low pressure, the absorption peak at 1 150 cm-1 was selected as the characteristic absorption peak for quantitative analysis of the purity of uranium hexaf...

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Bibliographic Details
Published inTong wei su Vol. 36; no. 3; pp. 344 - 350
Main Author LIU Wei;WANG Chunyan
Format Journal Article
LanguageChinese
Published Editorial Board of Journal of Isotopes 01.06.2023
Subjects
fourier infrared spectroscopy
low-pressure
purity
uranium hexafluoride
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Summary:In order to establish a method for quantitative analysis of the purity of gaseous Uranium hexafluoride using Fourier infrared spectroscopy under low pressure, the absorption peak at 1 150 cm-1 was selected as the characteristic absorption peak for quantitative analysis of the purity of uranium hexafluoride. It was showed that the pressure of gas analysis has a direct effect on the area of characteristic peak under low pressure condition, which could not be ignored in the process of purity calculation. Aiming at the online analysis demand of the residual UF6 in the tail material after UF6 gas was purified, the gas standard UF6 samples with different purity and pressure conditions were analyzed by establishing an infrared analysis system, a standard sample ratio system and a background spectrum calibration device that could meet the requirements of vacuum sealing. The calculation formula for the relationship between the UF6 purity and its characteristic absorption peak area as well as the gas absolute pressure
ISSN:1000-7512
DOI:10.7538/tws.2022.youxian.046