UO22+ Ion-Selective Membrane Electrode Based on a Naphthol-Derivative Schiff's Base 2,2'-[1,2-Ethandiyl bis(nitriloethylidene)]bis(1-naphthalene)

Bulletin of the Korean chemical society

Hashem Sharghi¹  Mojtaba Shamsipur¹  Gholamhasan Azimi¹  Ali Yaganeh-Faal¹  Abdullah Yari¹  Hossein Naeimi¹  Mahboubeh Saeidi¹  Mohammad Hossein Mashhadizadeh¹ 

关键词: UO2 2+ ion-selective electrode;    PVC membrane;    Schiff's base;    Potentiometry;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A new PVC membrane electrode for UO2 2+ ion based on 2,2`-[1,2-ethanediyl bis (nitriloethylidene)]bis(1-naphthalene) as a suitable ionophore was prepared. The electrode exhibites a Nernstian response for UO2 2+ ion over a wide concentration range (1.0 �? 10?1-1.0 �? 10?7 M) with a slope of 28.5 �? 0.8 mV/decade. The limit of detection is 7.0 �? 10?8 M. The electrode has a response time of < 20 s and a useful working pH range of 3-4. The proposed membrane sensor shows good discriminating abilities towards UO2 2+ ion with regard to several alkali, alkaline earth transition and heavy metal ions. It was successfully used to the recovery of uranyl ion from, tap water and, as an indicator electrode, in potentiometric titration of UO2 2+ ion with Piroxycam.

【 授权许可】

Unknown