| 黄土地区各土类中含氟量的测定 |
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| 引用本文： | 毕桂英,王志忠,马淑英.黄土地区各土类中含氟量的测定[J].水土保持通报,1989,9(4):46-49. |
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| 作者姓名： | 毕桂英 王志忠 马淑英 |
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| 作者单位： | 中国科学院水利部西北水土保持研究所;中国科学院水利部西北水土保持研究所;中国科学院水利部西北水土保持研究所 |
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| 摘 要： | 在测定黄土地区各土类中含氟量时,碱熔融——离子选择性电极法同氟试制比包法、茜素黄酸锆比色法、硝酸钍滴定法等相比,具有适用范围宽、选择性好、简单快速等特点。用该法测定的结果,其回收率在93.8—101%之间,变异系数多在5%以下。通过与标准样品含氟量比较,碱熔融—离子选择性电极法的测定结果,具有较高的精密度和准确度。
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| 关 键 词： | 土壤 氟 地下水 测定 饮水卫生 |
Fluorine determination of the soil on loess area |
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| Bi Guiying,Wang Zhizhong and Ma Shuying.Fluorine determination of the soil on loess area[J].Bulletin of Soil and Water Conservation,1989,9(4):46-49. |
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| Authors: | Bi Guiying Wang Zhizhong and Ma Shuying |
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| Institution: | Northwestern Institute of Soil and Water Conservation under the Chinese Academy of Sciences and the Ministry of Water Conservancy;Northwestern Institute of Soil and Water Conservation under the Chinese Academy of Sciences and the Ministry of Water Conservancy;Northwestern Institute of Soil and Water Conservation under the Chinese Academy of Sciences and the Ministry of Water Conservancy |
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| Abstract: | In the determination of soil fluorine on the loess area the method of alkali melting-ion opting eletrode, compared with colorimetric analysis by fluorine reagent and by atizarin-zirconium sulphonate, titration by the thorium nitrate, is with the characters of wider measuring range of 0.05-1, 900mg/l, better selection, simple and faster determination, etc..The results obtained with the method show that the rate of recovery is 93-101%, the variation coefficient is mostly less than 5%. The comparison with fluorine content of standard sample demonstrates that the determined results obtained with alkali melting-ion opting electrode are accurater and preciser. |
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