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Method for measuring beryllium and potassium content in zirconium and zirconium alloy at the same time

A zirconium alloy and potassium content technology, applied in the field of chemical analysis, can solve problems such as difficult and easy ionization, and achieve high accuracy, fast analysis speed, and high international recognition

Inactive Publication Date: 2015-06-10
国核宝钛锆业股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Beryllium is the fourth element in the periodic table. It has a light atomic weight and is easily ionized. Potassium is a typical alkali metal and is easily ionized. It is extremely difficult to determine the content of beryllium and potassium using vertical observation technology.

Method used

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  • Method for measuring beryllium and potassium content in zirconium and zirconium alloy at the same time
  • Method for measuring beryllium and potassium content in zirconium and zirconium alloy at the same time
  • Method for measuring beryllium and potassium content in zirconium and zirconium alloy at the same time

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Embodiment 1

[0026] The method for measuring beryllium and potassium content in zirconium and zirconium alloys in this embodiment comprises the following steps:

[0027] Step 1, turning pure zirconium or zirconium alloy to obtain chip-like samples, then cleaning the chip-like samples and drying them for later use;

[0028] In the specific implementation process of this embodiment, the pure zirconium or zirconium alloy chip-like sample was soaked and cleaned with absolute ethanol for more than 30 seconds, and then the sample was rinsed with pure water for more than 10 times, and then the chip-like sample was kept at a temperature not exceeding 50°C. Dry under the condition of high temperature; the absolute ethanol is above the analytical grade, and the pure water meets the requirements of GB / T 6682 laboratory grade water;

[0029] Step 2, using the heap-cone quartering method to perform shrinkage selection on the dried pure zirconium or zirconium alloy sample in step 1 to obtain the sample ...

Embodiment 2

[0044] The method for measuring beryllium and potassium content in zirconium and zirconium alloys in this embodiment comprises the following steps:

[0045] Step 1, turning pure zirconium or zirconium alloy to obtain chip-like samples, then cleaning the chip-like samples and drying them for later use;

[0046] In the specific implementation process of this embodiment, the pure zirconium or zirconium alloy chip-like sample was soaked and cleaned with absolute ethanol for more than 30 seconds, and then the sample was rinsed with pure water for more than 10 times, and then the chip-like sample was kept at a temperature not exceeding 50°C. Dry under the condition of high temperature; the absolute ethanol is above the analytical grade, and the pure water meets the requirements of GB / T 6682 laboratory grade water;

[0047] Step 2, using the heap-cone quartering method to perform shrinkage selection on the dried pure zirconium or zirconium alloy sample in step 1 to obtain the sample ...

Embodiment 3

[0062] The method for measuring beryllium and potassium content in zirconium and zirconium alloys in this embodiment comprises the following steps:

[0063] Step 1, turning pure zirconium or zirconium alloy to obtain chip-like samples, then cleaning the chip-like samples and drying them for later use;

[0064] In the specific implementation process of this embodiment, the pure zirconium or zirconium alloy chip-like sample was soaked and cleaned with absolute ethanol for more than 30 seconds, and then the sample was rinsed with pure water for more than 10 times, and then the chip-like sample was kept at a temperature not exceeding 50°C. Dry under the condition of high temperature; the absolute ethanol is above the analytical grade, and the pure water meets the requirements of GB / T 6682 laboratory grade water;

[0065]Step 2, using the heap-cone quartering method to perform shrinkage selection on the dried pure zirconium or zirconium alloy sample in step 1 to obtain the sample t...

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Abstract

The invention provides a method for measuring the beryllium and potassium content in zirconium and zirconium alloy at the same time. The method includes the following steps that 1, pure zirconium or zirconium alloy is turned to obtain cuttings-shaped samples, and then the samples are cleaned and dried; 2, coning and quartering are adopted to conduct sampling; 3, the samples are dissolved, a solution is transferred to a volumetric flask to conduct constant volume, and a solution to be measured is obtained; 4, a series of beryllium-potassium correction solutions of different concentration are mixed; 5, the element feature spectral intensity of beryllium and potassium in the beryllium-potassium correction solutions of all concentration is measured one by one through an inductive coupling plasma emission spectrometer, and a correction curve is established; 6, the element feature spectral intensity of the beryllium and potassium in the solution to be measured is measured through the inductive coupling plasma emission spectrometer, and the beryllium content and the potassium content in the pure zirconium samples or the zirconium alloy samples are worked out according to the correction curve. By means of the method, the difficulty that a vertical observation technology is prone to being interfered when measuring elements which are ionized easily can be overcome, and the nuclear industry zirconium and zirconium alloy detection requirement is met.

Description

technical field [0001] The invention belongs to the technical field of chemical analysis, in particular to a method for simultaneously measuring beryllium potassium content in zirconium and zirconium alloys. Background technique [0002] Metal zirconium and its alloys are widely used in cladding materials and core structural materials of water-cooled power reactors. At present, the chemical analysis methods of zirconium and zirconium alloys reported publicly in China are mainly GB / T 13747 National Standard for Chemical Analysis Methods of Zirconium and Zirconium Alloys promulgated in 1992, and the determination of nuclear grade zirconium by inductively coupled plasma emission spectrometry published by Li Gang and others in 2012. 17 kinds of constant and trace elements in the alloy. None of these documents involve the determination methods of beryllium and potassium in zirconium and zirconium alloys. The main technical difficulties are as follows: [0003] At present, the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
Inventor 惠泊宁李中奎周军焦永刚石明华田锋张建军袁改焕
Owner 国核宝钛锆业股份公司
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