| 钨精矿、锡石矿中铌和钽的5—Br－PADAP分光光度法的测定 |
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| 引用本文： | 李天瑞.钨精矿、锡石矿中铌和钽的5—Br－PADAP分光光度法的测定[J].稀有金属与硬质合金,1996(3). |
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| 作者姓名： | 李天瑞 |
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| 作者单位： | 中南工业大学测试分析中心 |
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| 摘 要： | 用２－（５－溴－２吡啶偶氮）－５－二乙氨基苯酚（５－Ｂｒ－ＰＡＤＡＰ）为显色剂，采用多波长分光光度法测定钨精矿、难溶锡石矿中的铌、袒，方法快速、准确、灵敏度高，相对标准偏差≤０．０２１（ｎ＝１６）．
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| 关 键 词： | 分光光度法，5－Br－PADAP，铌钽 |
5-Br-PADAP Spectrophotometry of Nb and Ta in W Concentrate and Difficult Cassiterite |
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| Li Tianrui.5-Br-PADAP Spectrophotometry of Nb and Ta in W Concentrate and Difficult Cassiterite[J].Rare Metals and Cemented Carbides,1996(3). |
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| Authors: | Li Tianrui |
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| Affiliation: | Analysis/Testing Center of Central-south University of Technology |
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| Abstract: | Use of spectrophotometry with several wave lengths in mixed complex system with 5-Br-PADAP developer to determine Nb and Ta from W concentrate and cassiterite can make the determination fast, accurate and sensitive with relative standard deviation 0. 021 (n= 16). The paper deals with this method. |
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| Keywords: | spectrophotometry 5-Br-PADAP Nb Ta |
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