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Fullerene ‐ β ‐ Cyclodextrin Conjugate Based Electrochemical Sensing Device for Ultrasensitive Detection of p ‐Nitrophenol
Author(s) -
Rather Jahangir Ahmad,
Debnath Pradip,
De Wael Karolien
Publication year - 2013
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.201300304
Subject(s) - detection limit , conjugate , nitrophenol , 4 nitrophenol , fullerene , electrochemistry , cyclodextrin , chemistry , cyclic voltammetry , electrode , analytical chemistry (journal) , chromatography , organic chemistry , catalysis , mathematical analysis , mathematics
The article describes the use of a fullerene (C 60 )‐β‐cyclodextrin conjugate, synthesized via 1,3 ‐ dipolar cycloaddition, for the ultrasensitive electrochemical detection of p‐ nitrophenol. This conjugate was successfully immobilized on the surface of a glassy carbon electrode and the developed device showed high activity towards p‐ nitrophenol due to the synergetic effect of C 60 , the latter becoming highly conductive upon reduction. The determination of p‐ nitrophenol was performed by using square wave voltammetry over a concentration range from 2.8×10 −9 mol L −1 to 4.2×10 −7 mol L −1 and the detection limit was calculated to be 1.2×10 −9 mol L −1 .