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| 催化动力学分析法测定痕量锰的研究 | |
| 引用本文： | 韩秀丽,李红萍,刘耀民.催化动力学分析法测定痕量锰的研究[J].河南科学,2006,24(1):35-37. |
| 作者姓名： | 韩秀丽 李红萍 刘耀民 |
| 作者单位： | 1. 郑州大学,化工学院,河南,郑州,450002 2. 河南省三门峡市环境检测站,河南,三门峡,472000 3. 濮阳职业技术学院,河南,濮阳,457000 |
| 摘 要： | 研究了在HAc-NaAc介质中,以氨三乙酸(NTA)为活化剂,锰(Ⅱ)离子催化高碘酸钾氧化溴甲酚绿的褪色反应,建立了测定痕量锰的新方法.实验结果表明:方法的线性范围为10-120ng/25ml,检测限为0.21ng/ml,用于黄河水中锰的测定,结果满意. |
| 关 键 词： | 锰 催化动力学分析法 溴甲酚绿 |
| 文章编号： | 1004-3918(2006)01-0035-03 |
| 收稿时间： | 2005-10-11 |
| 修稿时间： | 2005年10月11 |
Catalytic kinetic spectrophotometric determination of trace manganese |
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| HAN Xiu-li,Li Hong-ping,Liu Yao-min.Catalytic kinetic spectrophotometric determination of trace manganese[J].Henan Science,2006,24(1):35-37. | |
| Authors: | HAN Xiu-li Li Hong-ping Liu Yao-min |
| Institution: | 1. College of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, China; 2. Environment Monitoring Station of Sanmenxia, Sanmenxia 472000, China; 3. Puyang Vocational and Technical College, Puyang 457000, China |
| Abstract: | A new catalytic spectrophotometry method for the determination of trace manganese has been developed. The method is based on the oxidation of bromocresol green with potassium periodate using manganese as a catalyst and nitrilo triacetic acid as an activator in a solution of HAc-NaAc. The results show that the detection limit of Mn is 0.21ng/ml, and the linear range of determination is 10-120ng/25ml. The method has been applied to the determination of Mn in Yellow River water with satisfactory results. |
| Keywords: | manganese catalytic-kinetic analytical method bromocresol green |
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