| 分光光度-遗传算法同时测定锌、镉、钴、镍、锰 |
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| 引用本文： | 陈国新,王英华,王洪艳,韩洋.分光光度-遗传算法同时测定锌、镉、钴、镍、锰[J].冶金分析,2005,25(3):1-1. |
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| 作者姓名： | 陈国新 王英华 王洪艳 韩洋 |
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| 作者单位： | 吉林大学化学学院分析化学系,吉林大学化学学院分析化学系,吉林大学化学学院分析化学系,吉林大学化学学院分析化学系 吉林长春130023,吉林长春130023,吉林长春130023,吉林长春130023 |
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| 摘 要： | 在pH9.3,乳化剂OP存在下,Zn2+,Cd2+,Co2+,Ni2+,Mn2+与5-Br-PADAP发生灵敏的显色反应,所形成的三元胶束络合物的吸收光谱严重重叠,单独测定相互干扰严重。本文将分光光度法与遗传算法相结合,对同一混合体系的总吸光度值进行解析,实现了5种组分的同时测定。模拟样品测定的相对误差一般小于±10%。
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| 关 键 词： | 分光光度法 遗传算法 锌 镉 钴 镍 锰 同时测定 |
| 文章编号： | 1000-7571(2005)03-0001-04 |
| 修稿时间： | 2004年6月11日 |
Simultaneous determination of zinc,cadmium,cobalt,nickel,manganese by spectrophotometry combined with genetic algorithms |
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| CHEN Guo-xin,WANG Ying-Hua,WANG Hong-yan,HAN Yang.Simultaneous determination of zinc,cadmium,cobalt,nickel,manganese by spectrophotometry combined with genetic algorithms[J].Metallurgical Analysis,2005,25(3):1-1. |
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| Authors: | CHEN Guo-xin WANG Ying-Hua WANG Hong-yan HAN Yang |
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| Abstract: | A sensitive color reaction takes place for determination of trace Zn,Cd,Co,Ni,Mn with 2(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) in the presence of p-octyloplyethylenelycol phenylether (OP) at pH 9.3, to form a ternary micelle complex, of which the absorption spectras overlap seriously. A spectrophotometry combined with one of chemometrics techniques-genetic algorithms is adopted in order to determine Zn,Cd,Co,Ni and Mn. Through analysis of total absorbance values in a same system with using genetic algorithms, the simultaneous determination of Zn,Cd,Co,Ni and Mn is achieved. The method has been used to the determination of Zn,Cd,Co,Ni and Mn in synthetic solution. The relative error is 10% generally. |
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| Keywords: | spectrophotometry genetic algorithms zinc cadmium cobalt nickel manganese simultaneous determination |
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