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| Determination of Seven Elements (Lithium, tantalum,niobium et al. ) in Lepidolite by Inductively Coupled Plasma Emission Spectrometry |
| Received:September 02, 2015 Revised:November 09, 2015 |
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| DOI：doi:10.3969/j.issn.2095-1035.2016.01.011 |
| KeyWord:lepidolite ; inductively coupled plasma emission spectrometry ; lithium；tantalum; niobium |
| Author | Institution |
| ZOU Yang |
中南大学 化学化工院，长沙 |
| YANG Yuan |
中南大学 化学化工院，长沙 |
| LUO You |
中南大学 化学化工院，长沙 |
| DENG Feiyue |
中南大学 化学化工院，长沙 |
| MENG Shixian |
贵州中烟工业有限责任公司遵义卷烟厂，贵州遵义 |
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| Abstract: |
| In this work，a HNO3-HF-HClO4 acid system was used to dissolve the sample in ptfe crucible, then the constant volume of the digestion solution was kept with HNO3. The contents of seven elements such as lithium (Li), tantalum (Ta), and niobium (Nb) et al. were determined in lepidolite by inductively coupled plasma emission spectrometry. The proposed method had been applied to the analysis of certified references materials (GBW07154 and GBW07152), and the analytical results were in good agreement with the reference values. The detection limits were 0.001 8~0.113 4 μg/g, and the relative standard deviations (RSDs, n=6) were between 0.95% and 3.5% with 95.0%～108% recoveries. This method has rapid analytical speed, good accuracy, and less reagent consumption, and it is suitable for the detection of Li，Ta，Nb and other elements in lepidolite samples for mass analysis. |
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