| 四溴荧光素丁基罗丹明B染料离子对的光学性质 |
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| 引用本文： | 赵兴茹,丁良,刘保生,左本成.四溴荧光素丁基罗丹明B染料离子对的光学性质[J].河北大学学报(自然科学版),1998(1). |
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| 作者姓名： | 赵兴茹 丁良 刘保生 左本成 |
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| 作者单位： | 河北职工医学院，河北大学理化中心 |
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| 摘 要： | 对四溴荧光素、丁基罗丹明Ｂ，以及它们形成的离子缔合物的光学性质进行了研究。测得四溴荧光素与丁基罗丹明Ｂ在ｐＨ７时的缔合比为１∶２，其Ｋｓｐ＝２１６×１０－１８。缔合物的萃取率为８４２％。丁基罗丹明Ｂ的浓度在１×１０－７～５×１０－７ｍｏｌ·Ｌ－１范围内其相对荧光强度遵守比耳定律。为进一步研究四溴荧光素、丁基罗丹明Ｂ的萃取光度分析奠定了理论基础。
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| 关 键 词： | 四溴荧光素 丁基罗丹明B 萃取率 |
Spectroscopic Characters of the Isochromatic Dye Ion Pair Formed by Tetrabromofluorescein and Buthylrhodamine B |
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| Zhao Xingru,Ding Ling,Liu Baosheng,Zuo Bencheng.Spectroscopic Characters of the Isochromatic Dye Ion Pair Formed by Tetrabromofluorescein and Buthylrhodamine B[J].Journal of Hebei University (Natural Science Edition),1998(1). |
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| Authors: | Zhao Xingru Ding Ling Liu Baosheng Zuo Bencheng |
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| Institution: | Zhao Xingru 1 Ding Ling 1 Liu Baosheng 2 Zuo Bencheng 2 |
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| Abstract: | The absorption and fluorescence properties of tetrabromofluorescein(TBF) and buthylrhodamine B(BRB) together with theisochromatic dye ion pair formed by TBF and BRB were studied The experiment showed that: the proportion of TBF∶BRB is 1∶2 at pH=7, K sp =2 16×10 -18 and the extraction rate is 84 2 % The fluorescence intensity is proportional to the concentration of BRB over the range 1×10 -7 ～5×10 -7 mol·L -1 Such properties are the fundation of application of TBF/BRB system in exteaction spectrophotometry |
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| Keywords: | Tetrabromofluorescein Buthylrhodamine B Extraction rate |
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