| X射线荧光法测定镧改性分子筛中La_2O_3含量 |
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| 引用本文： | 潘志爽,杨一青,王亚红,丁伟,张志国,王栋.X射线荧光法测定镧改性分子筛中La_2O_3含量[J].石化技术与应用,2010,28(6):527-529. |
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| 作者姓名： | 潘志爽 杨一青 王亚红 丁伟 张志国 王栋 |
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| 作者单位： | 中国石油兰州化工研究中心,甘肃兰州730060 |
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| 摘 要： | 以粉末试样压片制样,采用X射线荧光分析方法,测定镧改性分子筛中La2O3质量分数。结果表明,硅、铝、钠同时参加校正时获得最佳校正方程。X射线荧光分析方法的精密度小于1.00%,准确度偏差小于1.50%;其测定结果与采用化学法一致。
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| 关 键 词： | 基体效应 校正 分子筛 X射线荧光光谱 |
Determination of La2O3 content in La-modified zeolite by the X-ray fluroescence spectrometry |
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| Pan Zhishuang,Yang Yiqing,Wang Yahong,Ding Wei,Zhang Zhiguo,Wang Dong.Determination of La2O3 content in La-modified zeolite by the X-ray fluroescence spectrometry[J].Petrochemical Technology & Application,2010,28(6):527-529. |
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| Authors: | Pan Zhishuang Yang Yiqing Wang Yahong Ding Wei Zhang Zhiguo Wang Dong |
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| Affiliation: | ( Lanzhou Petrochemical Research Center,PetroChina,Lanzhou 730060, China) |
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| Abstract: | The mass fraction of La2O3 in modified zeolite was determinated by X - ray fluroescence spectrometry with pressed powder pellet sample preparation. The results showed that the optimal correction equation was obtained with the corrections of all matrix elements （ Si, Al, Na）. The relative errors of accuracy and precision were less than 1.50% and 1.00% respectively. The results were about the same as those of chemical method. |
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| Keywords: | matrix effect correction zeolite X -ray fluroescence spectrometry |
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