inorganic impurity

In this article , combined with the regulation in ICH guidance and the clauses for controlling heavy metal in USP , the methods to control heavy metal in inorganic impurity was discussed and analyzed .

结合ICH指南的规定和USP关于重金属控制的专论内容，对如何控制无机杂质中重金属类杂质进行了探讨和分析。

The effects of reactant concentration and inorganic impurity ( Na ~ + ) on calcium carbonate crystals were studied .

讨论了反应物浓度和杂质离子（Na+）对碳酸钙晶体生长的影响。

Treating active carbon with dilute hydrochloric acid solution can remove effectively the inorganic impurity adsorbed on the surface and then enhance the surface oxygen concentration .

用稀盐酸处理活性炭能有效去除表面杂质，增加表面氧含量，有利于金的表面富集，从而使金催化剂活性提高。

Therefore , in order to design materials more rationally , it is of great significance to understand and predict doping behaviors of ions in inorganic crystals and impurity energy levels of doped inorganic crystals .

因此，为了更合理的进行材料设计，理解并预测离子在无机晶体中的掺杂行为以及掺杂无机晶体的杂质能级具有重要意义。

It is filtrated by inorganic membrane to prevent impurity and oil from entering resin . Ni ~ ( 2 + ) is efficiently recycled by amidocyanogen-phosphonic acid resin and it can reuse in manufacture process .

利用无机膜进行过滤，防止杂质、油污引起树脂中毒失效，利用胺基膦酸树脂高效率回收废水中的Ni2+，回收的Ni2+可直接返回生产工序使用。