光谱学与光谱分析 |
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Determination of Trace Lead in Water Samples and Salt Samples by Graphite Furnace Atomic Absorption Spectrometry after Cloud Point Extraction |
ZHANG Yuan, LUO Wen-hong*, LI Hui |
Shantou University Medical College Central Laboratory, Shantou 515041, China |
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Abstract A method was developed for the determination of trace lead in water samples and salt samples by GFAAS after cloud point extraction. The parameters of extraction system such as pH, the concentrations of the extractant and the surfactant, and the time for cloud point extraction were optimized. Under the optimized conditions, the detection limits of lead were 0.000 5 μg·g-1 for salt, and 0.01 μg·L-1 for water, respectively. The proposed method was applied to the determination of lead in water samples and salt samples, and satisfactory results were obtained.
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Received: 2005-03-16
Accepted: 2005-06-18
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Corresponding Authors:
LUO Wen-hong
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Cite this article: |
ZHANG Yuan,LUO Wen-hong,LI Hui. Determination of Trace Lead in Water Samples and Salt Samples by Graphite Furnace Atomic Absorption Spectrometry after Cloud Point Extraction[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(07): 1349-1351.
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URL: |
https://www.gpxygpfx.com/EN/Y2006/V26/I07/1349 |
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