Test sample treatment method for simultaneously measuring content of silicon and phosphor in silicon-manganese alloy by ICP
A treatment method, silicon-manganese alloy technology, applied in the field of metallurgical material testing and analysis, can solve the problems of not being able to measure the silicon content of the sample at the same time, intense chemical reaction, low measurement results, etc., achieve good promotion and application prospects, and the treatment method is simple , to avoid the effect of volatilization loss
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[0025] 1. Preparation of the calibration solution for the working curve: draw the working curve with the solution of similar standard materials, weigh several silico-manganese alloy standard materials similar in composition to the sample to be tested, each element has more than 4 measuring points, and the content is as much as possible The distribution is gradient. After preparing the mother liquor according to the operation procedure, the weighed standard substance is standardized on the machine, and the corresponding standard curve is prepared. Taking the percentage content of the standard solution as the abscissa and the average value of the spectral intensity as the ordinate, the working curve of each element to be measured is drawn by the instrument data processing software.
[0026] 2. Measure the spectral intensity of each element to be tested in the target sample solution on the working curve obtained in the previous step, calculate the content value of each element to be...
Example Embodiment
[0027] Example 1
[0028] Weigh 0.1000g of a silicomanganese alloy sample with a particle size of 160 mesh, put it in the filter paper pre-filled with a total of 2.5g of anhydrous sodium carbonate: boric acid = 2:1 mixed flux, mix and wrap it and place it in 25g of graphite underlay Place the iron crucible in a high-temperature box-type resistance furnace at 800°C for 18 minutes, take it out and cool it for 3 minutes, and obtain sample a. Place sample a in a 500-ml tall beaker pre-filled with a total of 110 ml of hydrochloric acid: water = 1:3 dilute hydrochloric acid solution, and wait until the frit is completely dissolved in the dilute hydrochloric acid solution at 60°C to obtain sample b. Filter sample b in a 250ml volumetric flask with fast quantitative filter paper, wash the glass container and filter paper containing sample b with deionized water, collect the filtrate and lotion, cool to room temperature and dilute to the mark with deionized water, shake well Get the targ...
Example Embodiment
[0029] Example 2
[0030] Weigh 0.1000g of a silicomanganese alloy sample with a particle size of 180 mesh, put it in the filter paper pre-loaded with a total of 2.0g of anhydrous sodium carbonate: boric acid = 2:1 mixed flux, mix and wrap it and place it on a 20g graphite backing Place the iron crucible in a high-temperature box-type resistance furnace at 850°C for 15 minutes, take it out and cool for 2 minutes, and obtain sample a. Place sample a in a 500-ml tall beaker pre-filled with a total of 100ml of hydrochloric acid: water=1:3 dilute hydrochloric acid solution, and wait until the frit is completely dissolved in the dilute hydrochloric acid solution at 50°C to obtain sample b. Filter sample b in a 250ml volumetric flask with fast quantitative filter paper, wash the glass container and filter paper containing sample b with deionized water, collect the filtrate and lotion, cool to room temperature and dilute to the mark with deionized water, shake well Get the target samp...
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