| 二溴水杨醛异烟酰腙的合成及其与钪的荧光反应研究 |
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| 引用本文： | 杨志斌 范文娟. 二溴水杨醛异烟酰腙的合成及其与钪的荧光反应研究[J]. 分析化学, 1995, 23(5): 575-578 |
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| 作者姓名： | 杨志斌 范文娟 |
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| 作者单位： | 南昌大学化学系!南昌330047 |
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| 摘 要： | 合成了新荧光试剂３，５－二溴水杨醛异烟酰腙（简称ＤＢＳＩＮ），研究了该试剂与钪的荧光反应，在ｐＨ４．７～５．５乙醇／水溶液中，试剂与钪所形成的荧光络合物的λｅｘ＝３３５．４ ｎｍ、λｅｍ＝５１０ｎｍ．提出了混合稀土氧化物中微量钪的测定法。
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| 关 键 词： | 钪 水杨醛异烟酰腙 荧光分析 |
Synthesis of 3,5-Dibromosalicylidene-isoniazid and Its Fluorescence Reaction With Scandium |
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| Yang Zhibin,Fan Wenjuan,Luo Lin. Synthesis of 3,5-Dibromosalicylidene-isoniazid and Its Fluorescence Reaction With Scandium[J]. Chinese Journal of Analytical Chemistry, 1995, 23(5): 575-578 |
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| Authors: | Yang Zhibin Fan Wenjuan Luo Lin |
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| Abstract: | A fluorescent reagent, 3, 5-dibromosalicylidene-isoniazid (DBSIN) was synthesized, and characterized by IR and UV spectra. Scandium(III) reacts with DBSIN to form a fluorescent complex, while the other rare earth elements do not react. The fluorescence excitation and emission wavelengths of the complex are 335. 4 and 510 nm, respectively. The molar ratio of Sc : DBSIN is found to be 1 : 1. The optimum pH range for the determination of scandium is 4. 7-5. 5 (in buffer solution of sodium acetate-acetic acid). The proposed method has been used to determine the micro amounts of scandium in mixed oxide of rare earth elements with satisfactory results. |
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| Keywords: | 3 5-Dibromosalicylidene-isoniazid scandium fluorimetry |
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