| 光谱学与光谱分析 |
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| Mineralogical Effect Correction for Pressed Iron Ore Samples in Wavelength Dispersive X-Ray Fluorescence Analysis |
| SHAN Hua-zhen,ZHUO Shang-jun*,SHENG Cheng,SHEN Ru-xiang |
| Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China |
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Abstract The possibility of correcting mineralogical effect for pressed powder pellets of iron ore samples was studied in wavelength dispersive X-ray fluorescence analysis of major and minor elements with 10 Chinese iron ore CRMs. Two methods were applied to reduce the influence of mineralogical effect. The first one is to check 2θ angles for every sample before measurement to correct peak shift; another method is replacing peak intensity with peak area of the analytical line to correct the shape distortion of the spectrum. The K factors of the two methods for each element were compared to those from regular measurements. The results show that the calibration for most of the elements was improved, although to different degrees. The improvement in the calibration for sulfur is evident. The calibration for other elements can meet the general requirements except for total iron.
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Received: 2007-03-09
Accepted: 2007-06-16
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Corresponding Authors:
ZHUO Shang-jun
E-mail: sjzhuo@mail.sic.ac.cn
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