| 电感耦合等离子体发射光谱法测定锂辉石中氧化锂 |
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| 引用本文： | 徐修平,李波,华绍广.电感耦合等离子体发射光谱法测定锂辉石中氧化锂[J].金属矿山,2016,45(5):113-117. |
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| 作者姓名： | 徐修平 李波 华绍广 |
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| 作者单位： | 1.中钢集团马鞍山矿山研究院有限公司，安徽 马鞍山243000；2.金属矿山安全与健康国家重点试验室，安徽 马鞍山 243000；3.华唯金属矿产资源高效循环利用国家工程研究中心有限公司，安徽 马鞍山 243000；4.国家冶金工业铁精矿质量监督检测中心，安徽 马鞍山 243000 |
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| 摘 要： | 采用盐酸-硝酸-氢氟酸-高氯酸混合酸消解锂辉石样品，建立了电感耦合等离子体发射光谱法测定锂辉石中氧化锂含量的方法。试验确定的锂元素分析谱线为Li 610.362 nm，观测方式为径向观测，锂元素检测的高频功率为1.1 kW，雾化气流量为1.0 L/min，蠕动泵泵速为1.5 mL/min，样品溶液介质为浓度3%的盐酸。氧化锂浓度为0~50 mg/L时，氧化锂浓度-谱线强度曲线的线性相关系数为0.999 7；氧化锂含量的检出限为0.007 mg/L，相对标准偏差（RSD）为0.81%。该方法具有检出限低、灵敏度高、干扰少、准确度高、线性范围宽、操作简单等优点，可对大批量锂辉石样品氧化锂含量进行精确测定。
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| 关 键 词： | 锂辉石 电感耦合等离子体发射光谱法 氧化锂 测定 |
Determination of Lithium Oxide in Spodumene by Inductively Coupled Plasma-atomic Emission Spectrometry |
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| Xu Xiuping,Li Bo,Hua Shaoguang.Determination of Lithium Oxide in Spodumene by Inductively Coupled Plasma-atomic Emission Spectrometry[J].Metal Mine,2016,45(5):113-117. |
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| Authors: | Xu Xiuping Li Bo Hua Shaoguang |
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| Affiliation: | 1.Sinosteel Maanshan Institute of Mining Research Co.,Ltd.，Maanshan 243000,China；2.State Key Laboratory of Safety and Health for Metal Mine,Maanshan 243000，China；3.National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral ResourcesCo.,Ltd.，Maanshan 243000,China；4.National Quality Supervision and Test Center of Iron Concentrate of Metallurgical Industry，Maanshan 243000,China |
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| Abstract: | A new method is described for the determination of lithium oxide in spodumene by Inductively Coupled Plasma-Atomic emission spectrometry sample by HCl-HNO3-HF-HClO4 mixed acids dissolved the sample. Lithium analytical spectral lines is 610362 nm for the test，observation method is radial observation，high frequency power is 11 kW，atomizing gas flow rate was 10 L/min，the peristaltic pump speed is 15 mL/min for lithium detectionSample solution medium is hydrochloric acid for concentration of 3%.When lithium oxide concentration is 0~50 mg/L，linear correlation coefficient of the concentration of lithium - spectral line intensity curve is 0999 7；Lithium content detection limit is 0007 mg/L，relative standard deviation (RSD) is 081%.The method has the advantages of lower detection limit，high sensitivity，less disturbance，good accuracy，wide linear range and easy operating.The method is suitable for accurate determination on routine analysis of lithium oxide in spodumene |
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| Keywords: | Spodumene Inductively coupled plasma-atomic emission spectrometry Lithium oxide Detection |
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