A method for determining the content of primary and secondary elements in gypsum by X-ray fluorescence melting method
A technology of primary and secondary elements and fusion method is applied in the field of determining the content of primary and secondary elements in gypsum, and the application of X-ray fluorescence fusion method to determine the content of primary and secondary elements in gypsum. Accurate results, fast analysis, and simple operation
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Embodiment 1
[0040] Such as figure 1 Shown, a kind of method for measuring primary and secondary element content in gypsum by X fluorescence melting method, it comprises the following steps according to sequence:
[0041] (1) Select eight gypsum standard samples, pour 4.0g from the reagent bottle into a kraft paper sample bag, open the sample bag and place it in a blast oven to dry to constant weight, then take it out and place it in a desiccator cooled to room temperature;
[0042] (2) Weigh 0.5g of gypsum standard samples that have been dried and cooled to room temperature, place them in different porcelain crucibles, and place them in a muffle furnace to burn to constant weight, then take them out and place them in a desiccator to cool to room temperature;
[0043] (3) Weigh the total weight of the gypsum standard sample and the porcelain crucible after burning, and measure its loss on ignition;
[0044] (4) Weigh 5.0g fluxing agent respectively, and place it in different platinum cr...
Embodiment 2
[0077] A method for measuring the content of primary and secondary elements in gypsum by X-ray fluorescence melting method is the same as that of Example 1, except that the selected gypsum standard sample is 3.0g, the drying temperature is 40°C, and the drying time is 12h; Get each 0.5005g of gypsum standard samples that have been dried and cooled to room temperature, the burning temperature of the gypsum samples is 950°C, and the burning time is 40min; the quality of the flux taken by weighing is 5.0005g; Add 0.3ml of ammonium bromide release agent to the flux mixture, and after 10 minutes of heating, constant temperature, rotation, casting, cooling, demoulding and other steps, a molten glass piece of a gypsum standard sample is obtained. Use the phosphogypsum sample WFPS to be tested provided by Wengfu Group to measure the content of primary and secondary elements, repeat steps (1)-(5) to obtain a molten glass sheet of the sample, and use an X-ray fluorescence spectrometer to...
Embodiment 3
[0081] A method for determining the content of primary and secondary elements in gypsum by using the X-ray fluorescence melting method is the same as in Example 1, except that the selected gypsum standard sample is 5.0g, the drying temperature is 50°C, and the drying time is 20h; Get each 0.5003g of gypsum standard samples that have been dried and cooled to room temperature, the burning temperature of the gypsum samples is 1050°C, and the burning time is 60min; the quality of the flux taken by weighing is 5.0003g; Add 0.25ml of ammonium bromide mold release agent to the flux mixture, and after 15 minutes of heating, constant temperature, rotation, casting, cooling, demoulding and other steps, a molten glass piece of a gypsum standard sample is obtained. Adopt the gypsum sample SG-1 to be tested provided by Sierte to measure the content of primary and secondary elements, repeat steps (1)-(5) to obtain a molten glass sheet of the sample, and use an X-ray fluorescence spectrometer...
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