| 氢氧化铝共沉淀浮选石墨炉原子吸收测水中铬（Ⅲ）与铬（Ⅵ） |
| |
| 引用本文： | 李琳.氢氧化铝共沉淀浮选石墨炉原子吸收测水中铬（Ⅲ）与铬（Ⅵ）[J].光谱学与光谱分析,1998,18(3):354-358. |
| |
| 作者姓名： | 李琳 |
| |
| 作者单位： | 四川联合大学化学系 |
| |
| 摘 要： | 本文了研究了氢氧化铝共沉淀浮选，石墨炉原子吸收光谱法测定天然地表水和饮用水中痕量Ｃｒ（Ⅲ）的方法。
|
| 关 键 词： | 铬 氢氧化铝 分析 共沉淀 浮选 环境水样 水样 |
GFAAS determination of trace Cr(III) and Cr(VI) after its separation by coprecipitation-floatation with aluminium hydroxide] |
| |
| L Li,Y Feng,G Huang.GFAAS determination of trace Cr(III) and Cr(VI) after its separation by coprecipitation-floatation with aluminium hydroxide][J].Spectroscopy and Spectral Analysis,1998,18(3):354-358. |
| |
| Authors: | L Li Y Feng G Huang |
| |
| Institution: | Department of Chemistry, Sichuan Union University, 610064 Chengdu. |
| |
| Abstract: | A method for determination of trace Cr(III) in natural water and drinking water by GFAAS after separation by coprecipitation-floatation with Al(OH)3 has been studied. Cr(VI) was determined also after being reduced by FeSO4. Conditions of Cr(III) floatation such as pH, the amount of floatation agent and coprecipitator-Aluminium added, the flow rate of nitrogen gas, the floatation time etc. were discussed. The influence of coexisting elements was investigated. The detection limit is 0.027 microg/L (n = 15). For Cr(III) concentration level of 0.5 microg/L, the RSD is 3.4% and the recovery of Cr(III) is 96.0-104.0%. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
