| 电感耦合等离子体原子发射光谱法测定铬矿中5种化学成分 |
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| 引用本文： | 李享.电感耦合等离子体原子发射光谱法测定铬矿中5种化学成分[J].理化检验(化学分册),2011(8). |
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| 作者姓名： | 李享 |
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| 作者单位： | 中钢集团天津地质研究院有限公司; |
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| 摘 要： | 提出了用电感耦合等离子体原子发射光谱法(ICP AES)测定铬矿中铁、铝、硅、镁和钙含量的方法。通过试验确定以混合熔剂碳酸钠-碳酸钾-硼砂质量比2比2比1熔融样品,熔块用硝酸(15+80)溶液浸取,分取部分试液按选定条件进行ICP-AES分析。选择393.37,251.61,271.44,396.15,279.55nm 5条谱线分别作为钙、硅、铁、铝及镁的分析线。用铬矿国家标准样品(BGBW 07201、GSBD 33001.3)制作标准曲线。按此方法对一种国家标准样品(GSBD 33001.2)和两种已知样品(Cr-2、72-Cr-01)进行分析。测定值与认定值基本一致,测得方法的回收率在99.0%～101.5%之间,相对标准偏差(n=6)在0.05%～0.78%之间。
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| 关 键 词： | 电感耦合等离子体发射光谱法 铬矿 铁 铝 硅 镁 钙 |
ICP-AES Determination of 5 Chemical Components in Chromium Ores |
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| LI Xiang.ICP-AES Determination of 5 Chemical Components in Chromium Ores[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(8). |
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| Authors: | LI Xiang |
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| Institution: | LI Xiang (Tianjin Geological Research Institute Co.,Ltd.,of Sinosteel Group,Tianjin 300181.China) |
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| Abstract: | ICP-AES was applied to the determination of Fe,Al,Si,Mg and Ca in chromium ores.The sample was fused with mixed flux of Na_2CO_3,K_2CO_3 and Na_2B_4O_7(2 + 2+1,mass ratio) and the melt was dissolved with dil.nitric acid(15 + 80).An aliquot of the sample solution was taken for ICP-AES analysis.The spectral lines of 393.37 nm,251.61 nm,271.44 nm,396.15 nm and 279.55 nm were selected for determination of Ca,Si,Fe,Al and Mg respectively.National standard samples(BGBW 07201 and GSBD 33001.3) were used for prepar... |
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| Keywords: | ICP-AES Chromium ore Fe Al Si Mg Ca |
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