| 光谱学与光谱分析 |
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| Nanometer-Size Titanium Dioxide Separation/Preconcentration and ICP-AES for the Determination of Cd, Co and Zn |
| SHI Ta-qing1, LIANG Pei2*, LI Jing2, LU Han-bing2 |
1. Jinggangshan Normol College, Jian 343009, China
2. Center for Analysis and Testing, Central China Normal University, Wuhan 430079, China |
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Abstract The adsorption behavior of Cd, Co and Zn on nanometer-size TiO2 was investigated. At pH 9.0, Cd, Co and Zn were retained on the nanometer-size TiO2, then eluted with 0.1 mol·L-1 HNO3 and determined by ICP-AES. The adsorption capacities of nanometer TiO2 were found to be 8.1, 6.9 and 15.1 mg·g-1 for Cd, Co and Zn respectively. The detection limits (3σ) for Cd, Co and Zn are 5.1, 3.4 and 2.9 ng·mL-1 respectively. The proposed method has been applied to the determination of trace Cd, Co and Zn in environmental samples with satisfactory results.
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Received: 2003-09-22
Accepted: 2004-02-08
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Corresponding Authors:
LIANG Pei
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| Cite this article: |
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SHI Ta-qing,LIANG Pei,LI Jing, et al. Nanometer-Size Titanium Dioxide Separation/Preconcentration and ICP-AES for the Determination of Cd, Co and Zn [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(03): 444-446.
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https://www.gpxygpfx.com/EN/Y2005/V25/I03/444 |
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