| 石灰岩中游离二氧化硅化学物相分析方法的标准化研究 |
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| 引用本文： | 韩秀卿.石灰岩中游离二氧化硅化学物相分析方法的标准化研究[J].岩矿测试,2000,19(4):259-263. |
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| 作者姓名： | 韩秀卿 |
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| 作者单位： | 国家建材局地质工程勘查研究院,北京,100102 |
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| 基金项目： | 地矿部国家标准、专业标准项目!(2 38) |
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| 摘 要： | 介绍了石灰岩中游离二氧化硅的化学物相分析方法，选择磷酸溶矿，再以氟硼酸解聚已溶出的硅酸，使游离二氧化硅与其他矿物分离，再用重量法进行测定，并按ＧＢ３７９－８６测试方法的精密度，通过实验室间试验确定标准测试方法的重复性和再现性，通过取样、制样、样品均匀性检查、精密度试验等步骤，对该方法进行了标准化研究。
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| 关 键 词： | 游离二氧化硅 化学物相分析方法 碳岩矿床 |
| 修稿时间： | 2000-07-14 |
Standardization of Method for Chemical Phases Analysis of Free Silica in Limestone |
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| HAN Xiu,qing.Standardization of Method for Chemical Phases Analysis of Free Silica in Limestone[J].Rock and Mineral Analysis,2000,19(4):259-263. |
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| Authors: | HAN Xiu qing |
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| Abstract: | A method for chemical phase analysis of free silica in limestone was discussed in this paper. After dissolving minerals in phosphoric acid, the dissolved silica was depolymerized by fluoroboric acid to separate free silica from other minerals. Then silica was determined by gravimetric method. The repeatability and reproducibility of the method were determined based on the precision requirement of standard method (GB6379-86) and inter laboratory tests. Standardization of the method was made through whole analysis procedure, including sampling, sample preparation, homogeneity test and precision test. |
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| Keywords: | limestone free silica chemical phase analysis standardization |
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