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A kind of grinding additive for X-ray fluorescence spectrometry analysis sample preparation and using method
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A fluorescence spectroscopy, additive technology, applied in fluorescence/phosphorescence, material analysis by optical means, analysis of materials, etc., can solve problems such as the inability to achieve the required particle size
Active Publication Date: 2021-02-23
ANGANG STEEL CO LTD
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[0002] With the increasing application of X-ray fluorescence spectrometer in the field of inorganic chemical analysis, the requirements for sample preparation technology before sample analysis are getting higher and higher. In order to ensure the accuracy of analysis results, the particle size of sample preparation is very strict, but some The physical properties of some flux and pellet samples make them unable to reach the required particle size
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[0024] The preparation method of the grinding aid additive: make a mixed solution of ethanol and triethanolamine according to the above ratio, mix well, add sodium stearate and mix thoroughly for use.
[0025] 2 ml of the above-mentioned additives were added to 40 g of the sample. The broken particle size finally reaches less than 0.050mm.
[0031] The preparation method of the grinding aid additive: make a mixed solution of ethanol and triethanolamine according to the above ratio, mix well, add sodium stearate and mix thoroughly for use.
[0032] 1 ml of the above-mentioned additives was added to 20 g of the sample. The broken particle size finally reaches less than 0.050mm.
[0038] The preparation method of the grinding aid additive: make a mixed solution of ethanol and triethanolamine according to the above ratio, mix well, add sodium stearate and mix thoroughly for use.
[0039] 2 ml of the above-mentioned additives were added to 40 g of the sample. The broken particle size finally reaches less than 0.050mm.
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Abstract
The invention relates to an X-rayfluorescence spectrometry analysis of a grinding additive for sample preparation and a method of use. The additive includes ethanol (95% analytical purity), triethanolamine (analytic purity>95%), sodiumstearate (analytic purity), The volume ratio of ethanol and triethanolamine is (1~2):1; add 3~5 grams of sodiumstearate to every 50 ml of ethanol and triethanolamine mixture. Add this additive during the sample preparation process, so that the particle size effect cannot be produced between the fine particles during the grinding process of the sample. Eliminate the adsorption force between the sample particles, increase the tension between the sample particles, so that the sample cannot adhere to a ball or cake during the grinding process, and hinder the further crushing of the sample particle size. Make the broken particle size of the sample finally reach less than 0.050mm.
Description
technical field [0001] The invention relates to a grinding aid additive for X-rayfluorescence spectrometry analysis sample preparation and a use method. Background technique [0002] With the increasing application of X-rayfluorescencespectrometer in the field of inorganic chemical analysis, the requirements for sample preparation technology before sample analysis are getting higher and higher. In order to ensure the accuracy of analysis results, the particle size of sample preparation is very strict, but some The physical properties of some flux and pellet samples make them unable to reach the required particle size. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a grinding aid for X-ray fluorescence spectrometryanalysis sample preparation, so that the particle size of the sample can overcome the shortcomings of its own physical properties and reach the particle size required by X-ray fluorescence spectrome...
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