An All-solid-state Cd-selective electrode with a low detection limit |
| |
| Authors: | Shunyang YuAuthor VitaeFuhai LiAuthor Vitae Wei QinAuthor Vitae |
| |
| Affiliation: | a CAS and Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China
b Chemistry and Biology College, Yantai University, Yantai 264005, PR China |
| |
| Abstract: | A new all-solid-state Cd2+-selective electrode with a low detection limit was prepared by using conjugated thiophene oligomer α-sexithiophene (α-6T) as solid contact deposited between an ionophore-doped poly(vinyl chloride) membrane and a gold disc substrate. The electrode exhibited a Nernstian response for Cd2+ ions over a wide concentration range of 10−3-10−7 M with a detection limit as low as 1.3 × 10−8 M. Results showed that the fabricated potentiometric sensor was suitable for use within the pH range of 2.0-9.0 and exhibited good reproducibility for long-term measurements. |
| |
| Keywords: | Cadmium All-solid-state Ion-selective electrodes Low detection limit |
| 本文献已被 ScienceDirect 等数据库收录！ |
