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Please note that all translations are automatically generated. Click here for the English version.
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03:10 min
December 22nd, 2023
DOI :
10.3791/201023-v
Transcript
首先,使用干净的陶瓷刀手动将食物样品切成小块。将样品转移到 250 毫升玻璃烧杯中。然后将样品放入 105 摄氏度的干燥器中,直到重量没有变化。
接下来,将干燥的样品转移到混合烧杯中。研磨样品,直到它变成细粉或均匀的糊状物。用干净的塑料刮刀将均质样品转移到 50 毫升玻璃烧杯中。
接下来,在分析天平上将 250 毫克样品称量到打开的反应容器中。称量完成后,盖上反应容器的盖子。然后将其转移到通风橱中。
现在打开反应容器的盖盖。然后将 5 毫升 68% 硝酸
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