By flame atom absorption spectrometry, the contents of passium oxide, Sodiumoxide in potassium feldspar are determined.
用火焰原子吸收分光光度法测定钾长石中的氧化钾、氧化钠。
2
For the route of selective separation and enrichment with sodiumoxide, it is very difficult for one-step route to produce quite pure enriched slag.
对于钠系选择性分离富集路线，采用一步调渣法路线难以取得较高纯度的富钛渣。
3
The results showed that only small amount of alkalis in feldspar were extracted when autoclaved with water, and the majority of extract is sodiumoxide.