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采用原子吸收光谱法测定氟碳铈矿与天青石共伴生矿中的锶,氟碳铈矿与天青石共伴生矿样品加入无水碳酸钠混合后经高温熔融,水热浸出后过滤水洗去除SO42-,沉淀用稀HNO3溶解后过滤并用纯水多次洗涤,滤液定容,原子吸收光谱法测定锶含量。方法不需分离去除稀土元素可直接测定锶含量,适用于氟碳铈矿与天青石共伴生矿中W(SrO)≤45%氧化锶含量的测定。
The atomic absorption spectrometry was used to determine the content of strontium in the bastnaesite and celestite co-associated ore. The samples of the bastnaesite and celestite co-occurring ore samples were mixed with anhydrous sodium carbonate, melted at high temperature, -, the precipitate was diluted with dilute HNO3 filtered and washed with pure water several times, the filtrate constant volume, atomic absorption spectrometry strontium content. The proposed method can be used for the direct determination of strontium without separation and removal of rare earth elements, and is suitable for the determination of strontium (W) content of 45% W (SrO) in the associated ore of bastnaesite and celestite.