| 光谱学与光谱分析 |
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| Determination of Trace Cadmium in Environment Water Samples by Flame Atomic Absorption Spectrometry Using Flow Injection On-Line Preconcentration with Double Microcolumns |
| KANG Wei-jun1，2, LIANG Shu-xuan2, JIA Li-hui3, XU Li-qin1, ZHAO Yan1, SUN Han-wen2 |
1. School of Public Health, Hebei Medical University, Shijiazhuang 050017, China
2. Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
3. Center for Disease Control and Prevention of Hebei Province, Shijiazhuang 050021, China |
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Abstract A rapid and sensitive methed for the determination of trace cadmium in environment water samples based on flow injection on-line preconcentration on two-microcolumn system-flame atomic absorption spectrometry has been developed. The cadmium in samples was sequentially retained on two microcolumns with cation exchange resin and was eluted directly in the nebulizer by 1.5 mol·L-1 HCl solution. The characteristic concentration (preconcentration time 1 min) for cadmium was 0.931 μg·L-1. The relative standard deviation at the 5 μg·L-1 level was 2.69% and the corresponding detection limit (3σ) was 0.808 μg·L-1. The method has been successfully applied to the determination of cadmium in water reference material GBW08608 and other water samples.
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Received: 2003-12-16
Accepted: 2004-04-30
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Corresponding Authors:
KANG Wei-jun
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| Cite this article: |
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KANG Wei-jun,LIANG Shu-xuan,JIA Li-hui, et al. Determination of Trace Cadmium in Environment Water Samples by Flame Atomic Absorption Spectrometry Using Flow Injection On-Line Preconcentration with Double Microcolumns [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(05): 792-795.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I05/792 |
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