| 双波长双峰值比光度法测定三元配合物组成比的研究--Al3+-CAS-CTMAB体系的组成比 |
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| 引用本文： | 张霖霖,郑文芝,林锦威,曾维.双波长双峰值比光度法测定三元配合物组成比的研究--Al3+-CAS-CTMAB体系的组成比[J].光谱学与光谱分析,2006,26(3):529-531. |
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| 作者姓名： | 张霖霖 郑文芝 林锦威 曾维 |
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| 作者单位： | 广州大学(麓湖校区)生化学院轻化系,广东,广州,510091 |
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| 基金项目： | 广州大学校科研和教改项目 |
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| 摘 要： | 采用双波长双峰值比的新方法,对三元配合物Al-CAS-CTMAB体系的组成比的测定进行了研究.首先用该法确定二元配合物的组成比Al:CAS为1:2,再以Al-CAS为参比(作显色剂),测定三元配合物Al-CAS-CTMAB中的CAS与CTMAB(或Al与CTMAB)之比为1:1(1:2),所以Al:CAS:CTMAB为1:2:2.与传统方法测定值一致,获得了满意的结果.进一步拓宽了计算公式的适用范围,确立了测定三元配合物组成比的新方法.其中CAS为络天青S(Chromeazurols).
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| 关 键 词： | 双峰值比 三元配合物组成 双波长光度法 |
| 文章编号： | 1000-0593（2006）03-0529-03 |
| 收稿时间： | 2004-12-16 |
| 修稿时间： | 2005-04-30 |
Study on Determining the Composition of Ternary Complex (Al-CAS-CTMAB) with the Ratio of Double Peak Values at Double Wavelengths by UV Spectrophotometry |
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| ZHANG Lin-lin,ZHENG Wen-zhi,LIN Jin-wei,ZENG Wei.Study on Determining the Composition of Ternary Complex (Al-CAS-CTMAB) with the Ratio of Double Peak Values at Double Wavelengths by UV Spectrophotometry[J].Spectroscopy and Spectral Analysis,2006,26(3):529-531. |
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| Authors: | ZHANG Lin-lin ZHENG Wen-zhi LIN Jin-wei ZENG Wei |
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| Institution: | Department of Light and Chemistry Engineering, Guangzhou University, Guangzhou 510091, China |
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| Abstract: | In the present paper, the composition of complex Al-CAS-CTMAB was studied with the ratio of double peak values at dual-wavelengths by UV spectrophotometry. First, the composition of complex of Al-CAS was determined in this method, Al:CAS = 1:2. The absorption of ternary complex(Al-CAS-CTMAB) was determined with reference reagent of the complex Al-CAS. The epsilon values of Al-CAS and Al-CAS-CTMAB were determined with water reference. The composition of complex Al (CAS)n1 (CTMAB)n2 was calculated with the formula: formula: see text] CAS:CTMAB = 1:1; Al:CAS:CTMAB = 1:2:2. The calculated value and that obtained by traditional method are agreeable. The method is reliable for determining composition of ternary complexes. |
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| Keywords: | Ratio of double peak values Composition of ternary complex Al-CAS-CTMAB Double wavelength spectrophotomentry |
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