Determination method for trace element potassium in pure Hf
A trace element and mass technology, applied in the field of pure metal trace element analysis, to achieve the effect of low detection limit, simple operation and elimination of ionization effect
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Embodiment 1
[0036] To determine the potassium content in pure Hf1, use atomic absorption spectrometer A (PE AAnalyst100 atomic absorption spectrometer). The working conditions and analysis lines of the instrument are shown in the following table:
[0037] Element
Analysis line nm
Spectral channel nm
Lamp current mA
Air flow L / min
Acetylene flow rate L / min
K
766.5
0.2
6
4.0
2.5
[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 10mg / mL. The preparation method is to weigh 2.53g of spectrally pure cesium chloride, place it in a 100mL beaker, add water to dissolve, transfer to a 200mL volumetric flask, and dilute with water to Scale and mix;
[0040] K standard solution I: The mass-volume concentration is 0.10mg / mL. The preparation method is to weigh 0.1907g of potassium chloride that has been burned at 550°C for 2h and cooled to room temperature in a desiccator. The mass...
Embodiment 2
[0062] To determine the potassium content in pure Hf2, use atomic absorption spectrometer A (PE AAnalyst100 atomic absorption spectrometer). The working conditions and analysis lines of the instrument are shown in the following table:
[0063] Element
Analysis line nm
Spectral channel nm
Lamp current mA
Air flow L / min
Acetylene flow rate L / min
K
766.5
0.7
12
4.0
1.5
[0064] The reagents used in the determination process of this method are:
[0065] Cesium chloride solution: The mass-volume concentration of cesium in the solution is 10mg / mL. The preparation method is to weigh 2.53g of spectrally pure cesium chloride, place it in a 100mL beaker, add water to dissolve, transfer to a 200mL volumetric flask, and dilute with water to Scale and mix;
[0066] K standard solution I: The mass-volume concentration is 0.10mg / mL. The preparation method is to weigh 0.1907g of potassium chloride that has been burned at 550°C for 2h and cooled to room temperature in a desiccator. The mas...
Embodiment 3
[0088] To determine the potassium content in pure Hf3, use atomic absorption spectrometer A (PE AAnalyst100 atomic absorption spectrometer). The working conditions and analysis lines of the instrument are shown in the following table:
[0089] Element
Analysis line nm
Spectral channel nm
Lamp current mA
Air flow L / min
Acetylene flow rate L / min
K
766.5
0.2
15
4.0
1.0
[0090] The reagents used in the determination process of this method are:
[0091] Cesium chloride solution: The mass-volume concentration of cesium in the solution is 10mg / mL. The preparation method is to weigh 2.53g of spectrally pure cesium chloride, place it in a 100mL beaker, add water to dissolve, transfer to a 200mL volumetric flask, and dilute with water to Scale and mix;
[0092] K standard solution I: The mass-volume concentration is 0.10mg / mL. The preparation method is to weigh 0.1907g of potassium chloride that has been burned at 550°C for 2h and cooled to room temperature in a desiccator. The mas...
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