| 高选择性荧光试剂：7－（8－喹啉偶氮）－8－羟基喹啉－5－磺酸测定痕量铝 |
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| 引用本文： | 沈含熙,汤园平. 高选择性荧光试剂：7－（8－喹啉偶氮）－8－羟基喹啉－5－磺酸测定痕量铝[J]. 冶金分析, 1995, 15(5): 1-1 |
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| 作者姓名： | 沈含熙 汤园平 |
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| 作者单位： | 南开大学化学系 |
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| 基金项目： | 国家自然科学基金,国家教委博士点专项基金 |
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| 摘 要： | 本文合成了一种新的测定铝的高选择性的荧光试剂：７－（８－喹啉偶氮）－８羟基喹啉－５－碘酸（ＱＡＨＱＳ）。在弱酸性介质（ｐＨ５．２）中，试剂能与铝离子形成发黄色荧光的络合物，其荧光峰位于４９０ｎｍ。反应具有较高的灵敏度和选择性。利用此反应建立了一种新的测定痕量铝的新方法。其检出限可达到２０ｎｇ／ｍｌ。方法用于无机盐试剂及水中痕量铝的测定，结果满意
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| 关 键 词： | 荧光试剂 铝的测定 |
Determination of Trace Aluminum Using High Selective Fluorescent Reagent:7-(8-Quinolylazo)-8-Hydroxyquinoline-5-Sulfonic Acid |
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| Shen Hanxi, Tang Yuanping. Determination of Trace Aluminum Using High Selective Fluorescent Reagent:7-(8-Quinolylazo)-8-Hydroxyquinoline-5-Sulfonic Acid[J]. Metallurgical Analysis, 1995, 15(5): 1-1 |
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| Authors: | Shen Hanxi Tang Yuanping |
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| Abstract: | A high selective fluorescent reagent 7-(8-quinolylazo)-8-hydroxyquinoline-5-sulfonic acid has been synthesized. In the weak acidic medium (pH5.2) the reagent could form a yellow fluorescent complex exhibiting a maximum of emission fluorescence spectrum at 490nm. The reaction showed high selectivity and sensitivity for aluminium ions. A new spectrofluorimetric method for the determination of trace aluminium using above mentioned reagent has been developed. The detection limit of the method has been found to be 2.0ng/ml. The method could be used to determine aluminium in some inorganic chemicals and water samples. The results found were satisfied. |
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| Keywords: | Fluorescent reagent 7-(8-Quinolylazo)-8-hydroxyquinoline-5-sulfonic acid Aluminium determination |
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