| 比值光谱导数法同时测定铝合金中铁,铜,锌 |
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| 引用本文： | 刘葵,耿玉珍.比值光谱导数法同时测定铝合金中铁,铜,锌[J].分析化学,1998,26(10):1201-1204. |
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| 作者姓名： | 刘葵 耿玉珍 |
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| 作者单位： | 山东农业大学基础部!泰安271018 |
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| 摘 要： | 用比值光谱－导数分光光度法，在ｐＨ５．５缓冲溶液中，利用金属－２－（５－溴－２－吡啶偶氮）－５－二乙氨基酚（５－Ｂｒ－ＰＡＤＡＰ）－ＯＰ三元络合物显色体系，对混合物中铁，铜，锌三组分进行了同时测定。合成试样５次测定回收率在９７．３％－１０４．４％之间。应用于铝合金中铁，铜，锌的测定，各６次测定的ＲＳＤ分别为３．６６％，１．３８％，２．０３％。
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| 关 键 词： | 比值导数光谱 铁 铜 锌 铝合金 分析 |
Simultaneous Determination of Iron. Copper and Zinc in Aluminium Alloy by the Ratio Spectrum-Derivative Spectrophotometry |
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| Liu Kui,Geng Yuzhen,Yang Jingzhi,Sun Yanhua.Simultaneous Determination of Iron. Copper and Zinc in Aluminium Alloy by the Ratio Spectrum-Derivative Spectrophotometry[J].Chinese Journal of Analytical Chemistry,1998,26(10):1201-1204. |
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| Authors: | Liu Kui Geng Yuzhen Yang Jingzhi Sun Yanhua |
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| Abstract: | Ratio spectro-derivative spectrophotometry was used for the simultaneous determination of Fe, Cu and Zn in aluminium alloy. In pH 5. 5 buffer solution, the overlapped spactra of Me-2-(5-bromo- 2pyridylazo ) -5 - diethylaminophenol (5 - Br- PADAP ) - OP complexes can be resolved by the method for the de termination. The rmovery of synthetic sample is in the range of 97 .3% -104.4% (n = 5). The relative standard deviations for the determination of Fe, Cu, Zn in aluminium alloy were 3. 7%, 1. 4% and 2.0% (n = 6) respectively. |
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| Keywords: | Ratio specteum-derivative spectrophotometric method simultaneous determination iron copper zinc |
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