Organic hafnium compound content detection pretreatment method

A hafnium compound and organic technology, which is applied in the pre-treatment field of content detection of organic hafnium compounds, can solve problems such as excessive content of matrix substances, detection background signal interference, low accuracy and effectiveness of instrument testing, etc.

Pending Publication Date: 2021-07-30
苏州禾川化学技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the existing detection methods, when detecting the purity of organic hafnium compounds or the content of organic hafnium compounds in materials, a series of problems such as detection background signal interference, excessive content of matrix substances, and insufficient sample digestion are often encountered. The accuracy and effectiveness of instrument testing are low, and it cannot meet the analysis and testing requirements of various precision instruments such as ICP-MS, ICP-AES, and AAS at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Prepare a cleaned PFA digestion tank with a cover. Use a pipette gun to add the mother liquor of the organic hafnium compound into the digestion tank. Place the digestion tank on a temperature-controllable heating plate at a heating temperature of 50°C. The mouth is heated and concentrated to half of the total volume to obtain the processed product 1;

[0024] Step 2: Turn off the power supply of the heating plate, take off the digestion tank after cooling for a period of time and continue to cool to room temperature, add 30% by mass percent of superior grade pure nitric acid and 30 percent by mass percent of superior grade nitric acid to the concentrated product Pure hydrogen peroxide, the volume ratio of the addition of the nitric acid to the addition of the organic hafnium compound mother liquor is 3:5, the volume ratio of the addition of the hydrogen peroxide to the addition of the organic hafnium compound mother liquor is 3:1, the Put the digestion tank on ...

Embodiment 2

[0027] Step 1 is the same as Example 1, except that the heating temperature is 60°C;

[0028] Step 2: Turn off the power supply of the heating plate, take off the digestion tank after cooling for a period of time and continue to cool to room temperature, add 30% by mass percent of superior grade pure nitric acid and 30 percent by mass percent of superior grade nitric acid to the concentrated product Pure hydrogen peroxide, the volume ratio of the addition of the nitric acid to the addition of the organic hafnium compound mother liquor is 6:1, the volume ratio of the addition of the hydrogen peroxide to the addition of the organic hafnium compound mother liquor is 1:3, the Put the digestion tank on the electric heating plate, turn on the power button, heat the reaction and concentrate it to less than one-third of the total volume, the heating temperature is 90°C, remove the digestion tank from the electric heating plate, and cool it at room temperature to obtain a processed prod...

Embodiment 3

[0031] Step 1 is the same as Example 1, except that the heating temperature is 70°C;

[0032] Step 2: Turn off the power supply of the heating plate, take off the digestion tank after cooling for a period of time and continue to cool to room temperature, add 30%-40% high-quality pure nitric acid and 30% by mass to the concentrated product The superior grade pure hydrogen peroxide, the volume ratio of the addition of the nitric acid and the addition of the organic hafnium compound mother liquor is 3:1, the volume ratio of the addition of the hydrogen peroxide and the addition of the organic hafnium compound mother liquor is 1: 1. Put the digestion tank on the electric heating plate, turn on the power button, heat the reaction to concentrate to less than one-third of the total volume, the heating temperature is 120°C, remove the digestion tank from the electric heating plate, and cool it at room temperature to obtain Handle product one;

[0033] Step 3 is the same as in Example...

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Abstract

The invention relates to the technical field of trace metal detection, in particular to an organic hafnium compound content detection pretreatment method which comprises the following steps: adding an organic hafnium compound mother solution into a digestion tank, and heating and concentrating to half in an open manner; cooling the concentrated product to room temperature, adding nitric acid and hydrogen peroxide into the concentrated product, heating, reacting and concentrating to be within 1/3 of the total volume, and cooling to room temperature; adding water into the treated product II, uniformly shaking, transferring to a constant volume into a volumetric flask, performing pretreatment on the sample solution to reduce the content of matrix substances in the sample solution, performing digestion through a system of nitric acid and hydrogen peroxide to destroy organic matters such as organic hafnium compounds in the sample solution so as to reduce background signal interference. The accuracy and the effectiveness of instrument testing are guaranteed, and meanwhile the analysis and detection requirements of various precise instruments such as ICP-MS, ICP-AES and AAS are met.

Description

technical field [0001] The invention relates to the technical field of trace metal detection, in particular to a pretreatment method for content detection of organic hafnium compounds. Background technique [0002] With the rise of new information technologies such as big data, artificial intelligence, and 5G, how to process massive and complex data in a faster and more energy-efficient manner has become the key to the development of information technology and the development trend of international integrated circuit technology. However, with the increase in the amount of information processing, the two major technical foundations supporting the development of information technology will face huge technical challenges and development bottlenecks. One is that the Von Neumann architecture that traditional computers rely on is due to the separation of computing and storage units, resulting in a large amount of energy and time consumed in data transmission on the data bus in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/40
CPCG01N1/4022G01N1/4044G01N2001/4027
Inventor 景欣欣孙洁任建国
Owner 苏州禾川化学技术服务有限公司
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