SalphenH2 as a Neutral Carrier for the Uranyl Ion-Selective PVC Membrane Sensor

Bulletin of the Korean chemical society

Kyeong-Won Park¹  Jineun Kim¹  Mi-Hyi Yang¹  Dong Wan Kim¹  Jae Sang Kim¹  Shim Sung Lee¹ 

关键词: Uranyl ion sensor;    Potentiometry;    PVC membrane;    SalphenH2 ionophore;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The complexation of N,N`-4,5-(ethylenedioxy)benzenebis(salicylideneimine), (salphenH2) with uranyl ion was studied in acetonitrile solution spectrophtometrically, and the formation constant of the resulting 1 : 1 complex was evaluated. The salphenH₂ ligand was used as an ionophore in plasticized poly(vinyl chloride) (PVC) matrix membrane sensor for uranyl ion. The prepared sensors exhibited a near Nernstian response, 28.0-30.9 mV/decade for uranyl ion over the concentration range 1.0 �? 10^-2 to 1.0 �? 10^-6 M with a limit of detection of 3.2 �? 10^-7 M. The proposed electrode could be used at a working pH range of 1.5-4.0.

【 授权许可】

Unknown