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ANION-SELECTIVE POLYMERIC MEMBRANE ELECTRODES BASED ON METALLOCENES

被引：61
作者：
HISAMOTO, H
SISWANTA, D
NISHIHARA, H
SUZUKI, K
机构：
[1] KEIO UNIV,DEPT APPL CHEM,KOHOKU KU,YOKOHAMA,KANAGAWA 223,JAPAN
[2] KEIO UNIV,DEPT CHEM,KOHOKU KU,YOKOHAMA,KANAGAWA 223,JAPAN
来源：
ANALYTICA CHIMICA ACTA | 1995年 / 304卷 / 02期
关键词：
ION SELECTIVE ELECTRODES; METALLOCENES; SALICYLATE;
D O I：
10.1016/0003-2670(94)00614-R
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Seven types of metallocenes (bis-cyclopentadienyl compounds) were used as anion ionophores for polymeric membrane electrodes and their anion selectivities were examined. The electrodes based on metallocenes exhibited different selectivity behaviour compared with the electrode using a classical anion exchanger such as tetraalkyl ammonium. The selectivity for tetraalkyl ammonium simply obeys the lipophilicity of anions, specifically, hafnocene dichloride exhibited a highly specific response to anions that have pi-electrons such as the salicylate ion. This electrode demonstrated a Nernstian response to the salicylate anion ranging from 1 X 10(-3) to 1 X 10(-1) M in a buffered solution (0.05 M Tris-H2SO4) adjusted to a pH of 7.4.
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页码：171 / 176
页数：6
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