| 火焰原子吸收法间接测定痕量汞 |
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| 引用本文： | 张霖霖,周勇强,林华杰,黎钧,周燕.火焰原子吸收法间接测定痕量汞[J].光谱学与光谱分析,2002,22(1):149-151. |
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| 作者姓名： | 张霖霖 周勇强 林华杰 黎钧 周燕 |
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| 作者单位： | 广州大学轻化系,广东,广州,510091 |
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| 摘 要： | 本文利用火焰原子吸收法研究了间接测定痕量汞的方法 ,在 pH为 5 0的HAc NaAc缓冲体系中 ,铜可富集和置换离子状态的汞 ,溶液中产生的铜离子浓度在一定范围内与汞离子有线性关系 ,从而达到分析汞的目的。汞在 0～ 0 4μg·mL- 1 浓度范围内呈良好的线性关系 ,回收率在 90 %～ 110 %之间 ,RSD为 3 5 %。
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| 关 键 词： | 间接测定 汞 火焰原子吸收法 水 食品 生物体 污染物 分析 |
| 文章编号： | 1000-0593(2002)01-0149-03 |
| 修稿时间： | 2000年12月6日 |
Indrect Determination of Trace Mercury Ion by Flame AAS |
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| ZHANG Lin-lin,ZHOU Yong-qiang,LIN Hua-jie,LI Jun,and ZHOU Yan Dept.of Light and Chem.Eng.,Guangzhou University,Guangzhou ,China.Indrect Determination of Trace Mercury Ion by Flame AAS[J].Spectroscopy and Spectral Analysis,2002,22(1):149-151. |
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| Authors: | ZHANG Lin-lin ZHOU Yong-qiang LIN Hua-jie LI Jun and ZHOU Yan Deptof Light and ChemEng Guangzhou University Guangzhou China |
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| Institution: | Dept. of Light and Chem. Eng., Guangzhou University, Guangzhou 510091, China. |
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| Abstract: | In this paper, the method of indirect analysis of trace Hg2+ has been researched. In the HAc-NaAc buffer solution (pH = 5.0), copper can enrich and displace Hg2+ in solution of sample. The calibration curve of Hg2+ and Cu2+ is linear within in the range of 0-0.4 microgram.mL-1 of Hg2+. The trace mercury ion can be indirect determined by FAAS without separation. The recovery is 90%-110%, and the RSD is 3.5%. The method has been used for determining the trace Hg2+ in human hair with satisfactory results. The Hg2+ in solution is determined without any interference of common ions. Thus the method selection is excellent. |
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| Keywords: | Indirect determination Flame AAS Hg 2+ |
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