2016 Volume 3 Issue 4

Evaluation of a carbon paste electrode modified with Ionic liquid and MnO nanoparticles in the Cu(II)determination by Potentiometric Method


Mona Mosazadeh, Mahmoud Ebrahimi, Ali Morsali
Abstract

A chemically modified carbon paste electrode with ionic liquid and MnO nanoparticles was prepared and used as a sensor for Cu2+ ion. Theionic liquid and MnO nanoparticles were used in the composition of the carbon paste to improve conductivity and transduction of chemical signal to electrical signal. Moreover, incorporation of N,N',N"- Tricyclohexil phosphoric triamid as an ionophore to this composition caused to significantly enhanced selectivity toward Cu (II) ions. The electrode exhibit a super Nernstian slope of 29.9 ±0.25 mV per decade for Cu2+ ion over a wide concentration range from 1.0×10-1to 1.0×10-6M.The lower detection limits are 3.2×10 -7 M. The electrode has a fast response time (<6 s), a satisfactory reproducibility and relatively long life time. The proposed sensor shows a fairly good selectivity toward Cu2+ ion in comparison to other common cations and the working pH range was 4.0- 11. Finally, these electrode have been successfully applied for the determination of Cu2+ ions content in various real samples.

 

Keywords: copper, Carbon paste electrode, Ionic liquid, Potentiometric, Mnonanopartcles


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Entomology and Applied Science Letters is an international peer reviewed publication which publishes scientific research & review articles related to insects that contain information of interest to a wider audience, e.g. papers bearing on the theoretical, genetic, agricultural, medical and biodiversity issues. Emphasis is also placed on the selection of comprehensive, revisionary or integrated systematics studies of broader biological or zoogeographical relevance. Papers on non-insect groups are no longer accepted. In addition to full-length research articles and reviews, the journal publishes interpretive articles in a Forum section, Short Communications, and Letters to the Editor. The journal publishes reports on all phases of medical entomology and medical acarology, including the systematics and biology of insects, acarines, and other arthropods of public health and veterinary significance.
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