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钨精矿、锡石矿中铌和钽的5—Br-PADAP分光光度法的测定
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, 0(3)
作者姓名:李天瑞
作者单位:中南工业大学测试分析中心
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).

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
Li Tianrui. 5-Br-PADAP Spectrophotometry of Nb and Ta in W Concentrate and Difficult Cassiterite[J]. Rare Metals and Cemented Carbides, 1996, 0(3)
Authors:Li Tianrui
Affiliation:Analysis/Testing Center of Central-south University of Technology
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.
Keywords:spectrophotometry  5-Br-PADAP  Nb  Ta
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