| 光谱学与光谱分析 |
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| Direct Determination of Trace Arsenic in Coal by Slurry-Sampling Graphite-Furnace Atomic Absorption Spectrometry |
| CHEN Shi-zhong |
| Key Laboratory, Wuhan Polytechnic University, Wuhan 430023, China |
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Abstract A method for direct determination of trace arsenic in coal by slurry-sampling Graphite-Furnace Atomic Absorption Spectrometry (GFAAS) was developed, using Pd as a matrix modifier. The effects of slurry stability, particle size of sample, matrix modifiers, ashing temperature, atomization temperature，and common coexisting components on the signal intensity of arsenic were investigated. Under optimized operating conditions, the detection limits and relative standard deviation of this method were 0.054 μg·g-1 and 8.9%, respectively.
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Received: 2003-12-25
Accepted: 2004-05-10
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Corresponding Authors:
CHEN Shi-zhong
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| Cite this article: |
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CHEN Shi-zhong. Direct Determination of Trace Arsenic in Coal by Slurry-Sampling Graphite-Furnace Atomic Absorption Spectrometry [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(10): 1267-1269.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I10/1267 |
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