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.
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页码：253 / 258
页数：6
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