| 光谱学与光谱分析 |
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| Direct Determination of Trace Lead in Chestnut by Graphite Furnace Atomic Absorption Spectrometry with Slurry Sampling |
| SONG Guang-sen |
| Department of Biotechnology and Chemical Engineering, Wuhan Polytechnic University, Wuhan 430023, China |
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Abstract A method for the direct determination of trace lead in chestnut by Graphite Furnace Atomic Absorption Spectrometry (GFAAS) with slurry sampling was developed in the present paper. Ammonium ortho-phosphate was used as a matrix modifier. The effects of slurry preparation, particle size of sample, matrix modifier, ashing temperature, atomization temperature, and common coexisting components on the determination of lead were studied. Under the optimized operating conditions, the detection limit, the relative standard deviation (RSD), and the recoveries of standard addition for this method were 0.47 ng·mL-1, 6.1% (n=11) and 90%-106%, respectively.
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Received: 2004-06-28
Accepted: 2004-10-16
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Corresponding Authors:
SONG Guang-sen
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| Cite this article: |
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SONG Guang-sen. Direct Determination of Trace Lead in Chestnut by Graphite Furnace Atomic Absorption Spectrometry with Slurry Sampling [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(04): 570-572.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I04/570 |
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