A Potentiometric Sensor for Cd 2+  Based on Carbon Nanotube Paste Electrode Constructed from Room Temperature Ionic Liquid, Ionophore and Silica Nanoparticles | Zendy

Afkhami Abbas | Zendy; Bagheri Hasan | Zendy; Shirzadmehr Ali | Zendy; Khoshsafar Hosein | Zendy; Hashemi Pegah | Zendy

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A Potentiometric Sensor for Cd 2+ Based on Carbon Nanotube Paste Electrode Constructed from Room Temperature Ionic Liquid, Ionophore and Silica Nanoparticles

Author(s) -

Afkhami Abbas,

Bagheri Hasan,

Shirzadmehr Ali,

Khoshsafar Hosein,

Hashemi Pegah

Publication year - 2012

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.201200246

Subject(s) - ionophore , ionic liquid , detection limit , hexafluorophosphate , potentiometric titration , carbon nanotube , potentiometric sensor , electrode , carbon paste electrode , nanoparticle , analytical chemistry (journal) , materials science , selectivity , inorganic chemistry , chemistry , chromatography , nanotechnology , electrochemistry , membrane , organic chemistry , catalysis , cyclic voltammetry , biochemistry

A novel and effective potentiometric sensor for the rapid determination of Cd 2+ based on carbon paste electrode consisting of the room temperature ionic liquid 1‐butyl‐3‐methylimidazolium hexafluorophosphate, multiwalled carbon nanotubes, silica nanoparticles and ionophore was constructed. The prepared composite has a low potential drift, high selectivity and fast response time, which leads to a more stable potential signal. A linear dynamic range of 4.50×10 −9 –1.00×10 −1 mol L −1 with a detection limit of 2.00×10 −9 mol L −1 was obtained. The modified electrode was successfully applied to the accurate determination of trace amounts of Cd 2+ in environmental and biological samples.

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