Modified Carbon Paste Electrode Based on Multi-Walled Carbon Nanotubes (MWCNTs) and Ionic Liquid for Potentiometric Determination of Cu 2+Ions in Real Samples

Eurasian Journal of Analytical Chemistry

关键词: copper;    carbon paste electrode;    carbon nanotubes;    potentiometric;   

DOI  :  10.12973/ejac.2017.00157a

学科分类：分析化学

来源: Eurasian Journal of Analytical Chemistry

【 摘 要 】

Carbon paste electrode based on multi-wall carbon nanotube (MWCNT) and ionic liquid was prepared and used for the potentiometric determination of copper ion. A multi-walled carbon nanotubes (MWCNTs) was used in the composition of the carbon paste to enhance conductivity and transduction of chemical signal to electrical signal. Furthermore, unification of 1,4-diamino anthraquinone as an ionophore to this composition caused to significantly improve d selectivity toward Cu (II) ions. The electrode show a nernstian slope of 29.5± 0.2mV per decade for Cu2+‏ ion over a wide concentration range from 1.0×10-1to1.0×10-6 M.The lower detection limits is 8.0×10-7 M. The electrode has a fast response time (

【 授权许可】

Unknown