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Sample preparation method and test method of trititanium pentoxide crystal particles in glow discharge mass spectrum

A glow discharge mass spectrometry and trititanium pentoxide technology, applied in the field of testing, can solve the problems of easy mixing of impurities and achieve the effects of ensuring accuracy, best test accuracy, and best washing effect

Pending Publication Date: 2021-07-13
KONFOONG MATERIALS INTERNATIONAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, impurities are easily mixed in the existing pressing method. Therefore, it is necessary to develop a sample preparation method for granular samples of special substances.

Method used

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  • Sample preparation method and test method of trititanium pentoxide crystal particles in glow discharge mass spectrum

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The present embodiment provides a sample preparation method of trititanium pentoxide crystal particles in glow discharge mass spectrometry, the sample preparation method comprises the following steps:

[0066] (1) A round indium sheet with a purity of 99.9995wt% is put into a polytetrafluoroethylene cup, pickled with 15wt% nitric acid for 3 minutes, and washed three times in the first water, the first water wash is rinsing, and then added absolute ethanol for The first ethanol washing, the first alcohol washing is alcohol rinsing, and then drying for the first drying to obtain the treated indium sheet;

[0067] (2) The particle diameter is 1~3mm, and the trititanium pentoxide crystal particle that evaporation temperature is 1650 ℃ is put into polytetrafluoroethylene cup, adds dehydrated alcohol solution, supersonic ultrasonic 3min, then through the second water washing three times, described The second water washing is rinsing, and then poured into absolute ethanol for ...

Embodiment 2

[0073] The present embodiment provides a sample preparation method of trititanium pentoxide crystal particles in glow discharge mass spectrometry, the sample preparation method comprises the following steps:

[0074] (1) A circular indium sheet with a purity of 99.999wt% is put into a polytetrafluoroethylene cup, pickled with 10wt% nitric acid for 5 minutes, and washed four times in the first water. The first water wash is rinsing, and then add absolute ethanol Carrying out the first ethanol washing, the first alcohol washing is alcohol rinsing, and then drying for the first drying to obtain the treated indium sheet;

[0075] (2) Put the trititanium pentoxide crystal particles with a particle size of 1 to 2 mm and an evaporation temperature of 1500° C. into a polytetrafluoroethylene cup, add absolute ethanol solution, ultrasonicate for 2 minutes, and then wash with water three times for the second time. The second water washing is rinsing, and then poured into absolute ethanol...

Embodiment 3

[0081] The present embodiment provides a sample preparation method of trititanium pentoxide crystal particles in glow discharge mass spectrometry, the sample preparation method comprises the following steps:

[0082] (1) A circular indium sheet with a purity of 99.9998wt% is put into a polytetrafluoroethylene cup, pickled with 25wt% nitric acid for 2 minutes, and washed three times in the first water, the first water washing is rinsing, and then added with absolute ethanol The first ethanol washing, the first alcohol washing is alcohol rinsing, and then drying for the first drying to obtain the treated indium sheet;

[0083] (2) The trititanium pentoxide crystal particles with a particle size of 1.5-3mm and an evaporation temperature of 2000°C were put into a polytetrafluoroethylene cup, added with absolute ethanol solution, ultrasonicated for 5 minutes, and then washed with water for 5 times. The second water washing is rinsing, and then poured into absolute ethanol for the t...

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Abstract

The invention provides a sample preparation method and a test method of trititanium pentoxide crystal particles in glow discharge mass spectrometry, and the sample preparation method comprises the following steps: (1) sequentially carrying out acid pickling, first water washing, first ethanol washing and first drying on an indium sheet to obtain a treated indium sheet; (2) sequentially carrying out second ethanol washing, second water washing, third ethanol washing and second drying on the trititanium pentoxide crystal particles to obtain treated trititanium pentoxide crystal particles; (3) placing the trititanium pentoxide crystal particles in the step (2) on the surface of the indium sheet, and tabletting to obtain a sample to be detected. The step (1) and the step (2) do not have a sequence; according to the sample preparation method, introduction of impurities is avoided as much as possible, so that the analysis time is shortened, and the data accuracy is ensured; according to the test method, strong signals can be obtained through specific test parameters, and the sensitivity is high.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to the technical field of glow discharge mass spectrometry, in particular to a sample preparation method for trititanium pentoxide crystal particles in glow discharge mass spectrometry. Background technique [0002] Glow discharge mass spectrometry is an analytical method that uses a glow discharge source as an ion source to connect with a mass spectrometer for mass spectrometry. It is mainly used to detect the content of trace elements in materials. The corresponding analytical instrument is called a glow discharge mass spectrometer. A core component of a glow discharge mass spectrometer is a glow discharge chamber, which is used to generate a glow discharge on the sample to be tested, sputter out neutral particles and then ionize into an ion beam. According to the shape and size of the sample to be tested, the glow discharge chamber is divided into two types: a sheet glow discharg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/34G01N27/68
CPCG01N1/34G01N27/68
Inventor 姚力军边逸军潘杰王学泽叶科奇钟伟华
Owner KONFOONG MATERIALS INTERNATIONAL CO LTD
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