Methods: Review the effect factor of cefpirome sulfate into endotoxin test from analyzing its acidity and its related impurity.

方法：通过对其酸度以及有关物质的分析，考察了其对细菌内毒素检查的影响因素以及排除其干扰的最佳方法。

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Results show that the oxygen content is dependant on the impurity oxygen content of the in Ta powder and is related to the anode sheet compaction, sintering and property.

结果表明：钽阳极块中的氧含量主要由原料钽粉中的杂质氧含量所决定，且与阳极块的压制、烧结及赋能条件等相关；

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The content related to purification technique for sodium is discussed. It includes impurity concentration, purification theory, clod trap, efficiency, regeneration and so on.

本文叙述了与钠净化技术有关的内容，包括钠中杂质浓度、净化理论、冷阱效率和冷阱再生等问题。

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