Fluorine determination of the soil on loess area

Bi Guiying; Wang Zhizhong; Ma Shuying

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Fluorine determination of the soil on loess area

- Fluorine determination of the soil on loess area
- Bulletin of Soiland Water Conservation Vol. 8, Issue 4, Pages: 46-49(1989)
- 作者机构：
  
  中国科学院水利部西北水土保持研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1989
- 稿件说明：
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Bi Guiying, Wang Zhizhong, Ma Shuying. Fluorine determination of the soil on loess area[J]. Bulletin of Soiland Water Conservation, 1989, 8(4): 46-49.
DOI：

Bi Guiying, Wang Zhizhong, Ma Shuying. Fluorine determination of the soil on loess area[J]. Bulletin of Soiland Water Conservation, 1989, 8(4): 46-49. DOI：

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。

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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