Highly Sensitive and Selective Amperometric Detection of Periodate at Glassy Carbon Electrode Modified with a Cyclometalated Iridium(III) Complex and Single‐Wall Carbon Nanotubes | Zendy

Shamsipur Mojtaba | Zendy; Roushani Mahmoud | Zendy; Mansouri Ghobad | Zendy

Premium

Highly Sensitive and Selective Amperometric Detection of Periodate at Glassy Carbon Electrode Modified with a Cyclometalated Iridium(III) Complex and Single‐Wall Carbon Nanotubes

Author(s) -

Shamsipur Mojtaba,

Roushani Mahmoud,

Mansouri Ghobad

Publication year - 2013

Publication title -

journal of the chinese chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.329

H-Index - 45

eISSN - 2192-6549

pISSN - 0009-4536

DOI - 10.1002/jccs.201200146

Subject(s) - amperometry , chemistry , periodate , iridium , detection limit , glassy carbon , carbon nanotube , electrochemistry , iodide , electrode , inorganic chemistry , carbon fibers , nuclear chemistry , organic chemistry , nanotechnology , cyclic voltammetry , chromatography , catalysis , materials science , composite material , composite number

Single‐wall carbon nanotubes (SWCNTs) were used as an immobilization matrix to incorporate [Ir(ppy) 2 (phen‐dione)](PF 6 ) complex onto a glassy carbon electrode for the study of electrocatalytic reduction of periodate ion. Detailed preliminary electrochemical data for the Ir(III)‐complex in acetonitrile solution and for the modified GCE/SWCNTs/[Ir(ppy) 2 (phen‐dione)](PF 6 )/CGE are presented. The modified electrode was applied to selective amperometric detection of periodate through its electrocatalytic reduction to iodide at 0.200 V and pH 2.0. The use of amperometry resulted in two calibration plots over the concentration ranges of 1‐20 μM and 20‐450 μM, with a detection limit of 0.6 μM and sensitivity of 198 nA μM −1 .

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research