色谱

色谱

• 研究论文 • 上一篇    下一篇

在L-缬氨酸介质中应用聚二苯并-18-冠醚-6-分离铈（III)

SABALE Sandip R, MOHITE Baburao S*   

  1. Analytical and Environmental Research Lab, Department of Chemistry, Shivaji University, Kolhapur 416004, M. S., India
  • 收稿日期:2008-07-25 修回日期:2008-09-25 出版日期:2009-03-30 发布日期:1982-12-25
  • 通讯作者: MOHITE Baburao S
  • 基金资助:
    This work was supported by the University Grant Commission for awarding Junior Research Fellowship

Chromatographic separation of cerium(Ⅲ) in L-valine medium using poly［dibenzo-18-crown-6］

SABALE Sandip R, MOHITE Baburao S*   

  1. Analytical and Environmental Research Lab, Department of Chemistry, Shivaji University, Kolhapur 416004, M. S., India
  • Received:2008-07-25 Revised:2008-09-25 Online:2009-03-30 Published:1982-12-25
  • Contact: MOHITE Baburao S

PDF

364

摘要： A column chromatographic method has been developed for the separation and determination of cerium(Ⅲ) using poly［dibenzo-18-crown-6］. The separation was carried out in L-valine medium. The adsorption of cerium(Ⅲ) was quantitative from 1×10-1 to 1×10-4 mol/L L-valine. Amongst the various eluents, 1.0-8.0 mol/L hydrochloric acid, 1.0-8.0 mol/L hydrobromic acid, 1.0-8.0 mol/L perchloric acid, 1.0-2.0 mol/L sulfuric acid and 4.0-5.0 mol/L acetic acid, were found to be the efficient eluents for cerium(Ⅲ). The capacity of poly［dibenzo-18-crown-6］ for cerium(Ⅲ) was （0.428±0.01） mmol/g. The method was applied to the separation of cerium(Ⅲ) from associated elements link uranium(Ⅵ) and thorium(Ⅳ). It was also applied for the determination of cerium(Ⅲ) in geological samples. The method is simple, rapid and selective with good reproducibility (approximately±2%).

关键词: cerium(Ⅲ), L-valine , poly［dibenzo-18-crown-6］, thorium(Ⅳ), uranium(Ⅵ), column chromatography

Abstract: A column chromatographic method has been developed for the separation and determination of cerium(Ⅲ) using poly［dibenzo-18-crown-6］. The separation was carried out in L-valine medium. The adsorption of cerium(Ⅲ) was quantitative from 1×10-1 to 1×10-4 mol/L L-valine. Amongst the various eluents, 1.0-8.0 mol/L hydrochloric acid, 1.0-8.0 mol/L hydrobromic acid, 1.0-8.0 mol/L perchloric acid, 1.0-2.0 mol/L sulfuric acid and 4.0-5.0 mol/L acetic acid, were found to be the efficient eluents for cerium(Ⅲ). The capacity of poly［dibenzo-18-crown-6］ for cerium(Ⅲ) was （0.428±0.01） mmol/g. The method was applied to the separation of cerium(Ⅲ) from associated elements link uranium(Ⅵ) and thorium(Ⅳ). It was also applied for the determination of cerium(Ⅲ) in geological samples. The method is simple, rapid and selective with good reproducibility (approximately±2%).

Key words: cerium(Ⅲ), L-valine , poly［dibenzo-18-crown-6］, thorium(Ⅳ), uranium(Ⅵ), column chromatography