Method for detecting chemical components of alkali-free glass by mixing X-ray fluorescence spectrometry with compression method
An alkali-free glass, chemical composition technology, applied in the preparation of test samples, material analysis using wave/particle radiation, measurement devices, etc., which can solve the problems of long measurement time and complex measurement steps.
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Embodiment 1
[0038] Determination of JBW04-1-1 standard sample of non-alkali glass ball
[0039]The measurement procedure is as follows:
[0040] 1. Weigh 10g (accurate to 0.0001g) of alkali-free glass ball standard sample and 1g (accurate to 0.0001g) of methyl cellulose into the mechanical vibrating grinding disc, add 2 drops of absolute ethanol, and set the mechanical vibrating mill for 120 seconds , after the milling is completed, a pressure of 3 tons is set on the tablet press, and the pressing time is 30 seconds to make a sample tablet. Calibration calibration curves were prepared in the same way using standard samples.
[0041] 2. Scan the alkali-free glass sample with X-ray fluorescence spectrometer to determine the peak value and background of each measured element, calculate the measurement time according to the intensity of the peak value and background and the measurement accuracy requirements of the measured elements, and establish the basis of each measured element Test cond...
Embodiment 2
[0053] An unknown sample of alkali-free glass produced by a domestic factory
[0054] After cleaning, drying, and cooling to room temperature, the hard alkali-free glass filaments weighed 10 g of the sample (accurate to 0.0001 g) and 1 g of methyl cellulose (accurate to 0.0001 g) and put them into a mechanical vibrating grinding disc, and added 2 drops of anhydrous Ethanol, the mechanical vibration mill is set for 120 seconds, after the milling is completed, a pressure of 3 tons is set on the tablet press, and the pressing time is 30 seconds to make a sample tablet.
[0055] Start the quantitative analysis program, select the calibration curve prepared in Example 1, and measure the prepared samples using the procedure in Step 4 of Example 1. Finally, the computer automatically calculates the content of each measured element and prints out the test results.
[0056] It took 1.5 hours for a sample from the preparation of the sample to the output of the measurement results. The a...
Embodiment 3
[0061] An unknown sample of alkali-free glass produced by a domestic factory
[0062] After cleaning, drying, and cooling to room temperature, the hard alkali-free glass filaments weighed 10 g of the sample (accurate to 0.0001 g) and 1 g of methyl cellulose (accurate to 0.0001 g) and put them into a mechanical vibrating grinding disc, and added 2 drops of anhydrous Ethanol, the mechanical vibration mill is set for 120 seconds, after the milling is completed, a pressure of 3 tons is set on the tablet press, and the pressing time is 30 seconds to make a sample tablet.
[0063] Start the quantitative analysis program, select the calibration curve prepared in Example 1, and measure the prepared samples using the procedure in Step 4 of Example 1. Finally, the computer automatically calculates the content of each measured element and prints out the test results.
[0064] The same sample is ground for 11 samples, and the average and standard deviation results of the measured values ...
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