Method for determination of trace element Na and K in pure Re
A trace element and quality technology, applied in the direction of color/spectral characteristic measurement, etc., to achieve the effect of saving manpower and material resources, fast measurement, and easy operation
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Embodiment 1
[0036] The content of sodium and potassium in pure Re1 was determined by atomic absorption spectrometer A (PE AAnalyst100 atomic absorption spectrometer). The working conditions and analysis lines of the instrument are shown in the figure below:
[0037]
[0038] The reagents used in the determination process of this method are:
[0039] Cesium chloride solution: the mass-volume concentration of cesium in the solution is 20mg / mL. The preparation method is to weigh 2.53g of spectroscopically pure cesium chloride, place it in a 100mL beaker, add water to dissolve it, transfer it into a 100mL volumetric flask, and dilute with water to scale, shake well;
[0040] Na standard solution: mass-volume concentration is 0.10mg / mL, prepared by weighing 0.2541g of sodium chloride which has been burned at 550°C for 2h and cooled to room temperature in a desiccator, the mass fraction of sodium chloride is not less than 99.95%, put in a 250mL beaker, add water to dissolve, add 20mL of MOS...
Embodiment 2
[0061] To measure sodium and potassium content in pure Re2, use atomic absorption spectrometer A (PE AAnalyst100 atomic absorption spectrometer). The working conditions and analysis lines of the instrument are shown in the figure below:
[0062]
[0063] The reagents used in the determination process of this method are:
[0064] Cesium chloride solution: the mass-volume concentration of cesium in the solution is 20mg / mL. The preparation method is to weigh 2.53g of spectroscopically pure cesium chloride, place it in a 100mL beaker, add water to dissolve it, transfer it into a 100mL volumetric flask, and dilute with water to scale, shake well;
[0065] Na standard solution: mass-volume concentration is 0.10mg / mL, prepared by weighing 0.2541g of sodium chloride which has been burned at 550°C for 2h and cooled to room temperature in a desiccator, the mass fraction of sodium chloride is not less than 99.95%, put in a 250mL beaker, add water to dissolve, add 20mL of MOS grade hy...
Embodiment 3
[0086] To measure the content of sodium and potassium in pure Re3, the atomic absorption spectrometer A (PE AAnalyst100 atomic absorption spectrometer) is used. The working conditions and analysis lines of the instrument are shown in the figure below:
[0087]
[0088] The reagents used in the determination process of this method are:
[0089] Cesium chloride solution: the mass-volume concentration of cesium in the solution is 20mg / mL. The preparation method is to weigh 2.53g of spectroscopically pure cesium chloride, place it in a 100mL beaker, add water to dissolve it, transfer it into a 100mL volumetric flask, and dilute with water to scale, shake well;
[0090] Na standard solution: mass-volume concentration is 0.10mg / mL, prepared by weighing 0.2541g of sodium chloride which has been burned at 550°C for 2h and cooled to room temperature in a desiccator, the mass fraction of sodium chloride is not less than 99.95%, put in a 250mL beaker, add water to dissolve, add 20mL ...
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