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Enantiomer-Selectivity of Ion-selective Electrodes Based on a Chiral Crown-ether Ionophore

 

作者: Viola Horváth,   Tímea Takécs,   George Horvai,   Peter Huszthy,   JeraldS. Bradshaw,   ReedM. Izatt,  

 

期刊: Analytical Letters  （Taylor Available online 1997）
卷期: Volume 30, issue 9  

页码: 1591-1609

 

ISSN:0003-2719

 

年代: 1997

 

DOI:10.1080/00032719708001680

 

出版商: Taylor & Francis Group

 

关键词: ion-selective electrodes;enantiomer-selectivity;chiral crown ether ionophore

 

数据来源: Taylor

 

摘要:

A newly synthesized crown ether ionophore can differentiate betweenR-(+) andS-(-)-1-phenylethylammonium ions when incorporated into a plasticized PVC based electrode membrane, thus providing enantiomer-selectivity. Different membrane compositions were studied. The selectivity coefficient found was 0.71, independent of the membrane composition. This proves the robustness of the ISE method for testing the enantiomeric selectivity of newly synthesized ionophores. Selectivities of the new ionophore towards different hydrophilic cations were also determined.

 

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