| 溴酚蓝·丁基罗丹明B染料离子对的性质 |
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| 引用本文： | 梁淑轩,赵兴茹. 溴酚蓝·丁基罗丹明B染料离子对的性质[J]. 河北大学学报(自然科学版), 2000, 20(4) |
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| 作者姓名： | 梁淑轩 赵兴茹 |
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| 作者单位： | 1. 河北大学,环境化学研究室,河北,保定,071002
2. 河北省职工医学院,基础部,河北,保定,071000 |
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| 摘 要： | 对溴酚蓝、丁基罗丹明B以及溴酚蓝和丁基罗丹明B形成的离子对的性质进行了研究 .溴酚蓝与丁基罗丹明B的缔合比在pH =7时为 1∶3,其Ksp=2 .66× 10 - 2 3,缔合物在甲苯中的萃取率为 94 .9% .缔合物的吸光度在溴酚蓝浓度为 0～ 6× 10 - 6mol/L时服从比耳定律 .为进一步研究溴酚蓝·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： | 溴酚蓝(BPB) 丁基罗丹明B(BRB) 萃取光度分析 |
Properties of the Isochromatic Dye Ion-Pairs Formed by Bromophenol Blue and Butylrhodamine B |
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| LIANG Shu-xuan,ZHAO Xing-ru. Properties of the Isochromatic Dye Ion-Pairs Formed by Bromophenol Blue and Butylrhodamine B[J]. Journal of Hebei University (Natural Science Edition), 2000, 20(4) |
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| Authors: | LIANG Shu-xuan ZHAO Xing-ru |
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| Abstract: | The properties of bromophenol(BPB) and butylrhodamine(BRB) and the isochromatic dye ionpairs formed by BPB and BRB were studied. The experiment showed that the proportion of BPB∶BRB was 1∶3 at pH 7, K sp =2.66×10 -23 and the extraction rate was 94.9%. The absorption was proportional to BPB concentration over the range of 0～6×10 -6 mol/L. It is the foundation of application of BPB and BRB in extraction spectrophotometry. |
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| Keywords: | bromophenol blue butylrhodamine B extraction spectrophotometry |
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