| 金的电化学价态分析和定量测定研究 |
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| 引用本文： | 屈凌波,郁有祝,郭玉华.金的电化学价态分析和定量测定研究[J].黄金,2009,30(5):43-45. |
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| 作者姓名： | 屈凌波 郁有祝 郭玉华 |
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| 作者单位： | 1. 河南工业大学化学化工学院
2. 河南安阳工学院化学与环境工程系 |
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| 摘 要： | 在一定条件下，用方波极谱法研究了Au（Ⅲ）和Au（Ⅰ）与4-（2-吡啶偶氮）-间苯二酚（PAR）络合时，Au（HI）和PAR络合物在-0．35V和-0．42V处有两个明晰的还原峰，其中第二个还原峰的电流（IP）与Au（Ⅲ）的质量浓度在0．50～4．0μg/mL范围内呈线性关系，检出限为0．010μg／mL；Au（Ⅰ）与PAR络合物在-0．38V处有-个明晰的还原峰，峰电流（IP）与Au（Ⅰ）的质量浓度在0．050—2．0μg／mL范围内呈线性关系，检出限为0．0030μg／mL。用该方法成功地分析了金矿粉处理后滤液中金的价态和含量。
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| 关 键 词： | 方波极谱法 4-(2-吡啶偶氮)-间苯二酚 Au(Ⅲ) Au(Ⅰ) |
Valence analysis and quantitative determination of gold by electrochemical method |
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| Qu Lingbo,Yu Youzhu,Guo Yuhua.Valence analysis and quantitative determination of gold by electrochemical method[J].Gold,2009,30(5):43-45. |
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| Authors: | Qu Lingbo Yu Youzhu Guo Yuhua |
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| Affiliation: | 1.Henan University of Technology;2.Deparment of Chemistry and Environment Engineering;Anyang Institute of Technology |
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| Abstract: | The complex of Au（ Ⅲ ） and Au（ Ⅰ ） with 4-（2-pyridylazo） resorcinol （PAR） were studied by square wave polarography respectively in this paper. There were two reduction peaks at - 0.35V and - 0.42V for the com- plex Au（ Ⅲ ） with PAR, and the electric current （IP） of the second reduction peak linearly increased with the increase of the concentration of Au（ Ⅲ） at the range of 0.50 -4.01μg/mL and the detection limit was 0.010μg/mL. Only a reduction peak was shown at -0.38V for the complex Au（ Ⅰ ） with PAR, the electric current（Ip） linearly in- creased with the increase of the concentration of Au（ Ⅰ） at the range of 0. 050 -2.0μg/mL and the detection limit was 0.003 0μg/mL. The valence and content of gold, in the filtrate after gold concentrate process, were successfully determined by this method. |
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| Keywords: | square wave polarography 4- （2-pyridylazo） resorcinol PAR Au （ Ⅲ ） Au （ Ⅰ ） |
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