Method for detecting contents of impurity elements in aluminum hydroxide via glow discharge mass spectrometry
A technology of glow discharge mass spectrometry and aluminum hydroxide, which is used in measurement devices, preparation of test samples, material analysis by electromagnetic means, etc., can solve non-conductor powder GD-MS detection, GD-MS discharge instability, Problems such as low signal intensity of the matrix, to achieve the effects of stable and reliable results, fast detection speed, and low detection limit
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Embodiment 1
[0031] Put the high-purity aluminum hydroxide 1# sample to be tested into a high-purity alumina crucible with a cover, heat it in a muffle furnace to 800 ° C for 10 hours, and cool it to room temperature; put the high-purity tantalum block with a through hole (thickness 10mm, purity ≥ 99.999%, length × width = 22mm × 22mm, cleaned and dried) placed on a high-purity aluminum base (purity ≥ 99.999%, the upper surface must be turned 1.5cm with a lathe before use to ensure the upper surface of the base clean and pollution-free), use a sampling spoon to take a certain amount of sample and place it in the through hole (diameter 4mm) of the high-purity tantalum block, and use a pressure rod to gently compact the powder in the high-purity tantalum block; under a pressure of 200N, use SYP-30TS manual tablet press (Shanghai Xinnuo Instrument) compacts the powder to ensure that the sample in the through hole of the high-purity tantalum has good strength and is not suitable for falling; pu...
Embodiment 2
[0035] Put the high-purity aluminum hydroxide 2# sample to be tested into a high-purity alumina crucible with a cover, heat it in a muffle furnace to 1000°C for 6 hours, and cool it to room temperature; put the high-purity tantalum block with a through hole (thickness 7mm, purity ≥ 99.999%, length × width = 20mm × 20mm, cleaned and dried) placed on a high-purity aluminum base (purity ≥ 99.999%, the upper surface of which needs to be turned 1.8cm with a lathe before use, to ensure the upper surface of the base Clean and pollution-free), use a sampling spoon to take a certain amount of sample and place it in the through hole (5mm in diameter) of the high-purity tantalum block, and use a pressing rod to gently compact the powder in the high-purity tantalum block; under a pressure of 250N, use SYP-30TS manual tablet press (Shanghai Xinnuo Instrument) compacts the powder to ensure that the sample in the through hole of the high-purity tantalum has good strength and is not suitable f...
Embodiment 3
[0039]Put the high-purity aluminum hydroxide 3# sample to be tested into a high-purity alumina crucible with a cover, heat it in a muffle furnace to 1200 ° C for 3 hours, and cool it to room temperature; put the high-purity tantalum block with a through hole (thickness 5mm, purity ≥ 99.999%, length × width = 25mm × 25mm, cleaned and dried) placed on a high-purity aluminum base (purity ≥ 99.999%, the upper surface must be turned 2.0cm with a lathe before use to ensure the upper surface of the base clean and pollution-free), use a sampling spoon to take a certain amount of sample and place it in the through hole (diameter 6mm) of the high-purity tantalum block, and use a pressure rod to gently compact the powder in the high-purity tantalum block; under a pressure of 300N, use SYP-30TS manual tablet press (Shanghai Xinnuo Instrument) compacts the powder to ensure that the sample in the through hole of the high-purity tantalum block has good strength and is not suitable for falling...
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