| 小波变换-偏最小二乘法用于Co,Ni,Zn的分光光度法同时测定 |
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| 引用本文： | 陈莉莉,金继红,秦孙巍.小波变换-偏最小二乘法用于Co,Ni,Zn的分光光度法同时测定[J].光谱学与光谱分析,2003,23(3):597-599. |
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| 作者姓名： | 陈莉莉 金继红 秦孙巍 |
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| 作者单位： | 中国地质大学材料科学与化学工程学院,湖北,武汉,430074 |
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| 基金项目： | 中国地质大学“数字地大”工程推动 |
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| 摘 要： | 建立了以 2 (5 溴吡啶偶氮 ) 5 二乙氨基苯酚 (5 Br PADAP)作显色剂 ,溴代十六烷基吡啶 (CPB)为增溶增敏剂 ,用小波变换—偏最小二乘分光光度法同时测定钴 ,镍 ,锌的方法。在波长 5 30～ 5 90nm范围内每隔 2nm测定其吸光值 ,将测定结果分别用偏最小二乘法处理和经小波变换后用偏最小二乘法处理。结果表明 ,经小波变换后处理结果回收率明显提高。
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| 关 键 词： | 光度法 小波变换 偏最小二乘回归 |
| 文章编号： | 1000-0593(2003)03-0597-03 |
| 修稿时间： | 2002年5月11日 |
Application of Wavelet Translation-PLS to Simultaneous Determination of Co,Ni and Zn |
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| CHEN Li-li,JIN Ji-hong and QIN Sun-wei Faculty of Material Science and Chemical Engineering,China University of Geoscience,Wuhan ,China.Application of Wavelet Translation-PLS to Simultaneous Determination of Co,Ni and Zn[J].Spectroscopy and Spectral Analysis,2003,23(3):597-599. |
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| Authors: | CHEN Li-li JIN Ji-hong and QIN Sun-wei Faculty of Material Science and Chemical Engineering China University of Geoscience Wuhan China |
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| Institution: | Faculty of Material Science and Chemical Engineering, China University of Geoscience, Wuhan 430074, China. |
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| Abstract: | The optimum conditions of the colour reaction of Cobalt,Nickel and Zinc with 5-Br-PADAP were established in the presence of the sensitizer/solubilizer CPB. The absorbances of the reaction system Co-Ni-Zn-(5-Br-PADAP)-CPB were measured in the spectral range of 530-590 nm at every 2 nm intervals. A chemometric method of data treatment was studied. Through the comparative study of data treatment by PLS method and by PLS after wavelet transformation, it was found that the recovery of determination is significantly improved by using the latter method. |
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| Keywords: | Photometry PLS after wavelet transformation PLS |
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