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| 金属卟啉螯合体系偏最小二乘荧光光度法同时测定锌镉铅 | |
| 引用本文： | 丁亚平 程丽娅. 金属卟啉螯合体系偏最小二乘荧光光度法同时测定锌镉铅[J]. 光谱学与光谱分析, 1998, 18(4): 472-476 |
| 作者姓名： | 丁亚平 程丽娅 |
| 作者单位： | 安徽农业大学应用化学系 |
| 摘 要： | 本文首次用偏最小二乘法解析超高灵敏多元金属卟啉螯合体系的重叠荧光光谱，提出了同时测定痕量锌镉铅的计算分析方法。在强碱性介质中，在Ｔｗｅｅｎ－８０增效作用下，于沸水浴内加热３０ｍｉｎ，Ｚｎ＾２＋、Ｃｄ＾２＋、Ｐｄ＾２＋与ｍｅｓｏ－四－（４－甲氧苯基）－卟啉螯合荧光反应能进行安全。该法用于合成试样及环境水样中锌、镉、铅的同时测定，加入回收率在９３．２－１０７％以内。 |
| 关 键 词： | 荧光光谱 TMOPP 锌 镉 铅 卟啉 测定 螯合物 |
SIMULTANEOUS DETERMINATION OF ZINC,CADMIUM AND LEAD CHELATED BY PORPHYRIN WITH PARTIAL LEAST SQUARES FLUORIMETRY |
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| Y Ding,Q Wu,L Cheng,X Wang. SIMULTANEOUS DETERMINATION OF ZINC,CADMIUM AND LEAD CHELATED BY PORPHYRIN WITH PARTIAL LEAST SQUARES FLUORIMETRY[J]. Spectroscopy and Spectral Analysis, 1998, 18(4): 472-476 | |
| Authors: | Y Ding Q Wu L Cheng X Wang |
| Affiliation: | Dept. of Appl. Chem., Anhui Agricultural University, 230036 Hefei. |
| Abstract: | The fluorescence spectra of super-highly sensitive chelate systems containing multicomponent metal porphyrins are analysed by partial least squares method, and a computerized analysis for the simultaneous determination of zinc, cadmium and lead is developed. Zinc, cadmium and lead can quantitatively combine with meso-tetrakis-(4-methoxyphenyl)-porphyrin in a strong base medium and in the presence of Tween-80 when they are heated for 30 min in a boiling water-bath. The proposed method has been applied to the simultane ous determination of zinc, cadmium and lead in artificial and environmental water samples, and the recovery ratios are in the range of 93.2-107%. |
| Keywords: | Fluorescence spectrum Partial least squares Zinc Cadmium Lead Porphyrin Simultaneous determination |
| 本文献已被 CNKI 维普 等数据库收录！ | |