| 原子吸收光谱法间接测定萤石中的全硫 |
| |
| 引用本文： | 刘玉龙,缪德仁. 原子吸收光谱法间接测定萤石中的全硫[J]. 分析试验室, 2009, 28(8) |
| |
| 作者姓名： | 刘玉龙 缪德仁 |
| |
| 作者单位： | 中国地质大学(北京)水资源与环境学院,北京,100083 |
| |
| 摘 要： | 基于SO42-和BaCrO4溶液反应生成BaSO4沉淀, 置换出定量的CrO42-, 通过原子吸收法测定Cr, 建立了间接测定萤石中硫的原子吸收光谱法. 方法的工作曲线范围0.05～20 μg/mL SO42-, 检出限为0.017 μg/mL S, 适用于硫质量分数在0.01%～3%范围内萤石样品的测定.
|
| 关 键 词： | 硫 火焰原子吸收法 间接测定 萤石 |
Indirect determination of total sulfur in fluorite by AAS |
| |
| LIU Yu-long,MIAO De-ren. Indirect determination of total sulfur in fluorite by AAS[J]. Chinese Journal of Analysis Laboratory, 2009, 28(8) |
| |
| Authors: | LIU Yu-long MIAO De-ren |
| |
| Affiliation: | School of Water Resources and Environment;China University of Geosciences;Beijing 100083 |
| |
| Abstract: | An indirect AAS method for the determination of total sulfur in fluorite is described in this paper. The sulfur in the sample is transformed into sulfate to react with BaCrO4 forming chromate (CrO42-). The chromate is displaced and the chromium is determined by AAS, and the sulfur content is calculated from the results of chromium determination. The calibration curve is quadratic over the concentration range of 0.05～20 μg/mL for sulfate. The RSD found is less than 7.4%. The proposed method is rapid, simple and active as compared with the conventional method. |
| |
| Keywords: | Sulfur Fluorite Indirect determination AAS |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
