| 光谱学与光谱分析 |
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| Method of Fused Sample Preparation after Nitrify—Determination of Primary and Minor Elements in Manganese Ore by X-Ray Fluorescence Spectrometry |
| SONG Yi, GUO Fen, GU Song-hai* |
| Tianjin Entry-Exit Inspection and Quarantine Bureau, Tanggu 300456, China |
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Abstract Eight components, i.e. Mn, SiO2, Fe, P, Al2O3, CaO, MgO and S, in manganese ore were determined by X-ray fluorescence spectrometer. Because manganese ore sample releases a lot of air bubbles during fusion which effect accuracy and reproducibility of determination, nitric acid was added to the sample to destroy organic matter before fusion by the mixture flux at 1 000 ℃. This method solved the problem that the flux splashed during fusion because organic matter volatilized brought out a lot of air bubbles, eliminated particle size effects and mineral effect, while solved the problem of volatilization of sulfur during fusion. The experiments for the selection of the sample preparation conditions, i.e. fusion flux, fusion time and volume of HNO3, were carried out. The matrix effects on absorption and enhancement were corrected by variable theoretical alpha coefficient to expand the range of determination. Moreover, the precision and accuracy experiments were performed. In comparison with chemical analysis method, the quantitative analytical results for each component are satisfactory. The method has proven rapid, precise and simple.
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Received: 2005-12-09
Accepted: 2006-03-28
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Corresponding Authors:
GU Song-hai
E-mail: gusonghi@yahoo.com.cn
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| Cite this article: |
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SONG Yi,GUO Fen,GU Song-hai. Method of Fused Sample Preparation after Nitrify—Determination of Primary and Minor Elements in Manganese Ore by X-Ray Fluorescence Spectrometry [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(02): 404-407.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I02/404 |
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