LEAD SELECTIVE ELECTRODES BASED ON THIOAMIDE FUNCTIONALIZED CALIX[4]ARENES AS IONOPHORES

被引：119

作者：

MALINOWSKA, E

BRZOZKA, Z

KASIURA, K

EGBERINK, RJM

REINHOUDT, DN

机构：

[1] TECH UNIV WARSAW,DEPT ANALYT CHEM,PL-00664 WARSAW,POLAND

[2] UNIV TWENTE,DEPT ORGAN CHEM,7500 AE ENSCHEDE,NETHERLANDS

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 298卷 / 02期

关键词：

CALIX[4] ARENES; LEAD SELECTIVE ELECTRODES; THIOAMIDE;

D O I：

10.1016/0003-2670(94)00266-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Lead selective electrodes based on a di- and tetrathioamide functionalized calix[4] arene as ionophores were investigated. The Pb(II)-response functions exhibited almost theoretical Nernstian slopes in the activity range 10(-6)-10(-2) M of lead ions. For both ionophores a preference for lead over other cations was observed. The best results were obtained for membranes containing the tetrathioamide derivative (ionophore 1), potassium tetrakis(4-chlorophenyl)borate and o-nitrophenyl octyl ether as a plasticizer. This electrode showed greatly improved selectivity over copper, zinc and cadmium ions as compared with commercial solid-state lead selective electrodes.

引用

页码：253 / 258

页数：6

共 28 条

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