Spectrophometric Determination of Niobium with 5—Br—PADAP
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Spectrophometric Determination of Niobium with 5—Br—PADAP
Acta Scientiarum Naturalium Universitatis SunYatseniVol. 20, Issue 1, Pages: 70-76(1981)
作者机构:
1. 中山大学化学系
2. 中山大学化学系 77届毕业生
3. 届毕业生
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Published:1981,
Published Online:25 January 1981,
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Spectrophometric Determination of Niobium with 5—Br—PADAP. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 20(1):70-76(1981)
DOI:
Spectrophometric Determination of Niobium with 5—Br—PADAP. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 20(1):70-76(1981)DOI:
Spectrophometric Determination of Niobium with 5—Br—PADAP
摘要
Abstract
2-[5-Bromo-2-pyridylazo]-5-diethylaminophenol(5-Br-PADAP)is a highly sensitivespectrophotometric reagent for niobium.It reacts with Nb(V)in acid medium(PH 0.5-0.8)to form a violet complex which has a maxium peak at 610nm.Ta(V)