Determination method of beryllium oxide in uranium dioxide-beryllium oxide

A technology of uranium dioxide and a determination method, which is applied in the field of chemical detection to meet the requirements of production, scientific research and detection, and the effect of accurate and reliable measurement data

Inactive Publication Date: 2017-07-07
CHINA NUCLEAR BAOTOU GUANGHUA CHEM IND
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Problems solved by technology

[0003] The determination methods of beryllium oxide in uranium dioxide-beryllium oxide in the prior art are all determined by chemical methods, and it is difficult to realize the determination of beryllium oxide in uranium dioxide-beryllium oxide by means of instrument measurement

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  • Determination method of beryllium oxide in uranium dioxide-beryllium oxide

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Embodiment Construction

[0036] A method for determining beryllium oxide in uranium dioxide-beryllium oxide of the present invention will be described in detail below in conjunction with the examples.

[0037] A method for measuring beryllium oxide in uranium dioxide-beryllium oxide of the present invention, after dissolving the uranium dioxide-beryllium oxide sample with nitric acid, hydrochloric acid, hydrofluoric acid, directly dilute to a certain volume with nitric acid solution, and adopt inductive coupling The plasma emission spectrometer measures the mass fraction of beryllium in the sample by the standard curve method, which specifically includes the following steps:

[0038] Step 1. Sample

[0039] Accurately weigh 0.1g of uranium dioxide-beryllium oxide sample, accurate to 0.0001g, as the sample for analysis.

[0040] Step 2. Blank test

[0041] Carry out a blank test along with the uranium dioxide-beryllium oxide sample to complete the preparation of the blank solution. The blank test is...

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Abstract

The invention belongs to the technical field of chemical detection, and particularly relates to a determination method of beryllium oxide in uranium dioxide-beryllium oxide. The determination method includes: using nitric acid, hydrochloric acid and hydrofluoric acid to dissolve a uranium dioxide-beryllium oxide sample; using a nitric acid solution to directly dilute to certain volume; adopting an inductive coupling plasma emission spectrometer to determine mass fraction of beryllium in the sample through a standard curve method. By the determination method, content of beryllium oxide can be determined accurately, the determination problem of content of beryllium oxide in uranium dioxide-beryllium oxide during production detection is solved, determination data are accurate and reliable, relative standard deviation is lower than 2%, average recycling rate is 99-102%, and product scientific research detection needs can be met.

Description

technical field [0001] The invention belongs to the technical field of chemical detection, in particular to a method for determining beryllium oxide in uranium dioxide-beryllium oxide. Background technique [0002] The main components of uranium dioxide-beryllium oxide are more than 90% uranium and 3% to 10% beryllium, and other chemical components include Al, Mg, Fe, etc. [0003] The determination methods of beryllium oxide in uranium dioxide-beryllium oxide in the prior art are all determined by chemical methods, and it is difficult to realize the determination of beryllium oxide in uranium dioxide-beryllium oxide by means of instrumental measurement. Contents of the invention [0004] The technical problem to be solved in the present invention is to provide a measurement method based on conventional laboratory equipment to measure the content of beryllium oxide in uranium dioxide-beryllium oxide to meet the needs of production, scientific research and testing. [0005...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/68
CPCG01N21/68
Inventor 董世哲陈艳宏柳永恒
Owner CHINA NUCLEAR BAOTOU GUANGHUA CHEM IND
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