| 萃取光度法测定痕量氟的改进 |
| |
| 引用本文： | 戴咏缨,王炜.萃取光度法测定痕量氟的改进[J].分析化学,1993,21(10):1202-1204. |
| |
| 作者姓名： | 戴咏缨 王炜 |
| |
| 作者单位： | 首都师范大学化学系，首都师范大学化学系，首都师范大学化学系 北京 100037，1992年毕业生，北京 100037，1992年毕业生，北京 100037 |
| |
| 摘 要： | 本文提出一种新的测定痕量氟的萃取光度法，采用Ｎ，Ｎ－二甲苯胺作萃取剂，证实异戊醇进入萃取的多元络合物组成，以六偏酸钠和乙酰丙酮可消除多量铁、铝的干扰，生物样品则宜用过氧化氢及过氧化钠高压分解。本法可检测多种水样中１０＾－９级的氟，相对标准偏差〈２％。
|
| 关 键 词： | 氟 萃取 光度法 茜素络合剂 |
Improvements of Extraction-Spectrophotometric Method for the Determination of Trace Amount of Fluoride |
| |
| Dai Yongying,Wang Wei,Zhou Tianze.Improvements of Extraction-Spectrophotometric Method for the Determination of Trace Amount of Fluoride[J].Chinese Journal of Analytical Chemistry,1993,21(10):1202-1204. |
| |
| Authors: | Dai Yongying Wang Wei Zhou Tianze |
| |
| Abstract: | A new extraction-spectrophotometric method for the determination of trace amount of fluoride is proposed, by using N, N-dimethylaniline as extractant, proving iso-pentyl alcohol into the composition of multi-dentate complex extracted,proposing a new masking system with sodium hexametaphosphate and acety-lacetone to elimi-nate the interference of macro amount of ferric and aluminium ions and using hydrogen pex-oxide and sodium peroxide to decompose bio-samples under high pressure. This method can detect fluoride ion in ppb level in various samples of water with relative standard deviation of less than 2%. |
| |
| Keywords: | Fluoride Extraction Spectrophotometry Alizarin complexone |
| 本文献已被 CNKI 维普 等数据库收录！ |
