Novel systems for selective cation detection:: Application of a lipophilic carborane anion in polymeric ion-selective electrodes

被引：12

作者：

Krondak, M ^{[1
]}

Volf, R ^{[1
]}

Král, V ^{[1
]}

机构：

[1] Inst Chem Technol, CR-16628 Prague 6, Czech Republic

来源：

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 2001年 / 66卷 / 11期

关键词：

ion selective electrodes; ionophores; co-receptors; lipophilic additives; carboranes; cobalticarborane; tetraphenylborates;

D O I：

10.1135/cccc20011659

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Selectivity and sensitivity of PVC membrane electrode are dramatically influenced not only by the specific receptor, but also, mainly for neutral ionophores, by additional lipophilic co-receptor. For cation detection, tetraphenylborate derivatives have been commonly used. Here, we describe novel systems based on conjunction of the classic cation receptors and a highly lipophilic cobalticarborane anionic species. The superiority of this novel co-receptor is demonstrated by application of dibenzo-18-crown-6 and dicyclohexano-18-crown-6 as ionophores in conjunction with the classic lipophilic additive and the novel additive cobalt! carborane. The presented data show much higher efficiency which makes this additive co-receptor ideal for cation detection and development of novel sensors.

引用

页码：1659 / 1664

页数：6

共 11 条

[1] Cationic or anionic sites?: Selectivity optimization of ion-selective electrodes based on charged ionophores [J].