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左银虎. 火焰发射光谱法测定锂辉石中锂[J]. 岩矿测试, 2009, 28(2): 199-200.
引用本文: 左银虎. 火焰发射光谱法测定锂辉石中锂[J]. 岩矿测试, 2009, 28(2): 199-200.
ZUO Yin-hu. Flame Emission Spectrometric Determination of Lithium in Spodumene[J]. Rock and Mineral Analysis, 2009, 28(2): 199-200.
Citation: ZUO Yin-hu. Flame Emission Spectrometric Determination of Lithium in Spodumene[J]. Rock and Mineral Analysis, 2009, 28(2): 199-200.

火焰发射光谱法测定锂辉石中锂

Flame Emission Spectrometric Determination of Lithium in Spodumene

  • 摘要: 样品用氢氟酸-高氯酸混合酸消解处理,用火焰原子发射法测定锂辉石中的锂含量。结果显示,在1%(体积分数)的硝酸介质中,空气压力0.3 MPa、乙炔流量1.2 L/min的条件下测定,100倍量的钾、钠、钙、钡、锶等共存元素不干扰测定。方法回收率为94.0%~106.0%,精密度(RSD)小于2%(n=10)。

     

    Abstract: A method for the determination of lithium in spodumene by flame emission spectrometry was reported in this paper. Samples were digested with HFHClO4 mixed acid and lithium in the sample solution was determined by emission spectrometry. The results showed that in the 1% HNO3(V/V) media and at the air pressure of 0.3 MPa with acetylene flow rate of 1.2 L/min, 100 times of coexistent elements of K, Na, Ca, Ba, Sr did not interfere with determination. The standard addition recovery of the method was 94.0%~106.0% with precision of 1.52%RSD(n=10).

     

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