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Method for analyzing solution sample in hot cell

A solution sample and analysis method technology, applied in the field of analysis of radioactive substances, can solve the problems of low degree of automation in the hot chamber and the inability to quickly complete the analysis of high-radioactive solution samples, etc., to simplify operations, ensure stability, and improve analysis efficiency Effect

Inactive Publication Date: 2014-08-27
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

[0012] In order to solve the problem that the domestic existing thermal chambers are not highly automated and cannot quickly complete the analysis of high-level radioactive solution samples, and at the same time simplify the operation process, ensure the safety of sample delivery, and improve the stability and repeatability of analysis results, the present invention provides a Analytical method of solution sample in a kind of hot chamber

Method used

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Embodiment

[0024] The analysis method of the solution sample in the hot chamber of the present invention is used to analyze the simulated high-level radioactive waste liquid, and the specific steps are as follows:

[0025] 1. Prepare a simulated solution sample containing uranium, neptunium, plutonium and other impurity elements to be tested, take 1mL of the simulated solution sample, adjust the acidity and the valence state of the components to be tested, and place it for use;

[0026] 2. Pass the simulated solution sample to be used through the cartridge-type solid-phase extraction column. At this time, uranium, neptunium, and plutonium are adsorbed on the solid-phase extraction column, and other impurity elements are washed away;

[0027] 3. Purging the residual liquid in the solid-phase extraction column with nitrogen gas to obtain a solid-phase extraction column loaded with components to be measured;

[0028] 4. Transfer the solid-phase extraction column carrying the components to b...

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Abstract

The invention relates to a method for analyzing a radioactive substance. In order to solve the problems that analysis of the high-level solution samples cannot be fast completed due to the fact that the automation degree of the existing domestic hot cells is not high, a method for analyzing the solution sample in a hot cell is provided. The method comprises the following steps that upper prop adsorption is conducted on the high-level solution sample by adopting a solid phase extraction column, and then high-level impurity components are removed through eluent in an elution mode; inert gas is adopted to blow residue liquid in the solid phase extraction column away; the solid phase extraction column is transferred into a glove box, and the components to be tested are respectively eluted; the components to be tested are analyzed. By means of the method for analyzing the solution sample in the hot cell, analysis of the high-level solution sample can be fast completed, the operation process is greatly simplified, meanwhile conveying safety of the sample can be ensured, and stability and repeatability of an analysis result are improved.

Description

technical field [0001] The invention relates to an analysis method of radioactive substances, in particular to an analysis method of a solution sample in a hot chamber. Background technique [0002] In the field of nuclear science and technology, the analysis of high-level radioactive solution samples is usually carried out in a thermal chamber to avoid radiation damage to humans and the impact on the environment. The operation in the traditional hot chamber mainly relies on the manipulator, and the operation of the manipulator is very complicated, so the process of sample analysis is very difficult, time-consuming and labor-intensive. [0003] For the analysis of solution samples in the non-nuclear field, the prior art usually uses electronic and automatic equipment to improve the convenience of operation. However, the highly radioactive and corrosive environment in the hot chamber will cause radiation damage to many equipment and components such as electronic and automati...

Claims

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Application Information

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IPC IPC(8): G01T1/167G01T7/00
Inventor 邓惟勤谈树苹陶苗苗吴继宗郝小娟赵立飞姜国杜王卫斌
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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