| 镧-溴邻苯三酚红-亚甲蓝配合物的紫外可见光谱研究 |
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| 引用本文： | 杨月辉,霍国燕,何丽丽,孟祥军. 镧-溴邻苯三酚红-亚甲蓝配合物的紫外可见光谱研究[J]. 河北大学学报(自然科学版), 1992, 0(3) |
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| 作者姓名： | 杨月辉 霍国燕 何丽丽 孟祥军 |
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| 作者单位： | 河北大学化学系(杨月辉，霍国燕，何丽丽)，河北大学化学系(孟祥军) |
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| 摘 要： | 本文研究了镧的溴邻苯三酚红配离子与亚甲蓝形成沉淀的最佳条件,测定了沉淀的组成和溶度积,研究了该三元离子对体系的吸光性质,可作为沉淀、分离、高灵敏协同显色反应测定微量镧的新方法。
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| 关 键 词： | 镧 溴邻苯三酚红 亚甲蓝 |
The UV-VIS Spectra Study on Coordination Compound of Lanthanum with Bromopyrogallol Red and Methylene Blue |
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| Yang Yuehui Huo Guoyan He Lili Meng Xiangjun. The UV-VIS Spectra Study on Coordination Compound of Lanthanum with Bromopyrogallol Red and Methylene Blue[J]. Journal of Hebei University (Natural Science Edition), 1992, 0(3) |
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| Authors: | Yang Yuehui Huo Guoyan He Lili Meng Xiangjun |
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| Affiliation: | Department of Chemistry |
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| Abstract: | Lanthanum ion reacts with bromopyrogallol red at oplimurn pH5.5~ 6.0 to give a blue complex which reacts with methylene blue to give an isochromatic ion-pair complex. The association capability and the absorption properties of the ion-pair system were studied Owing to the isochromatic effect of the ion-pairs, the sensitivity for the dctermination of lanthanum is enhanced .It can be used as a new method in the determination of lanthanum (Ⅲ) |
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| Keywords: | Lanthanum Bromopyrogallol red Methyiene bule. |
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