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A Vinylanthracene and Vinylferrocene‐Containing Copolymer: A New Dual pH/Sulfide Sensor
Author(s) -
Robinson Kay L.,
Lawrence Nathan S.
Publication year - 2006
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.200503456
Subject(s) - ferrocene , anthracene , moiety , sulfide , copolymer , cyclic voltammetry , chemistry , inorganic chemistry , voltammetry , polymer chemistry , photochemistry , electrochemistry , organic chemistry , electrode , polymer
A single electroactive copolymer containing both anthracene and ferrocene units has been synthesized to form a dual pH/sulfide sensor. Under cyclic voltammetric conditions the oxidation of the ferrocene moiety undergoes an electrocatalytic reaction with sulfide, producing a linear increase in the oxidative peak current over the range 0.2–2.0 mM. Furthermore, square wave voltammetry was utilized to determine the pH of the solution by measuring the variation in the anthracene oxidation potential with respect to the ferrocene oxidation wave.