期刊文献+

以双核有机锡(Ⅳ)配合物为中性载体高选择性硫氰酸根电极的研究

Study on selective thiocyanate electrode based on binuclear tin(Ⅵ) complex as neutral carriers
下载PDF
导出
摘要 研究了双核三苄基甲醇锡(Ⅳ)哌嗪荒酸酯配合物[Sn(Ⅳ)-BTMTP]为中性载体的PVC膜阴离子选择性电极。这类电极对硫氰酸根离子呈现出优良的电位响应性能和选择性,并呈现出反Hofmeister选择性行为。其选择性序列为:SCN-〉I-〉ClO4-〉NO2-〉NO3-〉Cl-〉SO42-〉AC-,该电极在pH=4.0的磷酸盐缓冲体系中对SCN-呈超能斯特响应,响应范围为1.0×10-1~3.2×10-5 mol/L,斜率为-72.4 mV/dec,检出限为1.28×10-5mol/L。采用交流阻抗及紫外光谱研究了阴离子与载体的作用机理。将该电极用于废水分析,结果令人满意。 A new binuclear tin(Ⅵ) complex(bis-tribenzyl-methoxide-tin piperazinylbisdithio carbamate) as neutral carrier for selective thiocyanate PVC membrane electrode was made.It displays an anti-Hofmeister selectivity se-quence:SCN- I- ClO4-NO2- NO3- Cl- SO42- AC-.The electrode exhibits Supper-Nernstian for SCN-over a wide concentration range(1.0×10-1 ~ 3.2×10-5 mol/L) with a detection limit 1.28×10-5 mol/L and a slope of-72.4 mV/dec in pH4.0 of phosphorate buffer solution at 25 ℃.The response mechanism is discussed in view of the AC impedance technique and the UV spectroscopy technique.The electrode was successfully applied to the disposal of SCN-in effluent.
出处 《化学传感器》 CAS 2010年第2期63-66,共4页 Chemical Sensors
关键词 双核三苄基甲醇锡(Ⅳ)哌嗪荒酸酯 中性载体 离子选择性电极 硫氰酸根 bis-tribenzyl-methoxide-tin piperazinylbisdithiocarbamate neutral carrier ion-selective electrode thiocyanate
  • 相关文献

参考文献8

二级参考文献19

  • 1刘冬,陈文灿,何德良,沈国励,俞汝勤.以双核有机锡化合物为载体的PVC膜磷酸根离子敏感电极[J].高等学校化学学报,1996,17(10):1528-1531. 被引量:11
  • 2Gao D,Fresenius J Anal Chem,1995年,351卷,484页 被引量:1
  • 3谢庆兰,化学学报,1992年,50卷,508页 被引量:1
  • 4SOLLNER K,SHEAN G M.Liquid ion-exchange membrane of extreme selectivity and high permeability for anions[J].Am Chem Soc,1964,86(9):1901-1902. 被引量:1
  • 5WUTHIER U,PHAM H V,ZUND R,et al.Tin organic compounds as neutral carriers for anion selective electrodes[J].Anal Chem,1984,56(3):535-538. 被引量:1
  • 6AMMANN D,HUSER M,KRAEUTLER B,et al.Anion selectivity of metalloporphrins in membranes[J].Helv Chim Acta,1986,69(4):849-854. 被引量:1
  • 7HODINAR A,JYO A.Thiocyanate solvent polymeric membrane ion-selective electrode based on cobalt( Ⅲ ) a,β,γ,δ-tetraphenylporphyrin anion carrier[J].Chem Lett,1988,198(6):993-996. 被引量:1
  • 8HORNING E C.Org Synth Coll Vol Ⅲ [M].New York:John Wiley,1995.140. 被引量:1
  • 9KEIITI S,YOSIYUKI T,ZIRO K.Synthesis of organotin compounds:di-and tribenzyltin chlorides[J].Am Chem Soc,1961,(83):538-543. 被引量:1
  • 10MOODY G L,OKE R B,THOMAS J D R.As calcium-sensitive electrode based on a liquid ion exchanger in a poly(vinyl chloride) matrix[J].Analyst,1970,95:910-913. 被引量:1

共引文献30

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部