Controlling the selectivity of glassy carbon flow detectors using covalently attached monolayers | Zendy

Downard Alison J. | Zendy; Roddick Alisa D. | Zendy

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Controlling the selectivity of glassy carbon flow detectors using covalently attached monolayers

Author(s) -

Downard Alison J.,

Roddick Alisa D.

Publication year - 1997

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.1140090908

Subject(s) - selectivity , monolayer , amperometry , aqueous solution , glassy carbon , alkyl , chemistry , covalent bond , electrode , carbon fibers , chemical engineering , inorganic chemistry , materials science , organic chemistry , electrochemistry , cyclic voltammetry , catalysis , biochemistry , composite material , composite number , engineering

Significant improvements in selectivity for amperometric detection in flow analysis are achieved at covalently modified glassy carbon electrodes. Flow detectors modified with p ‐alkylbenzene (alkyl = methyl, decyl) and p ‐phenylacetate monolayers demonstrate how selectivity may be obtained on the basis of solute hydrophobicity and charge. The modified electrodes are stable under hydrodynamic conditions and in aqueous and mixed aqueous/organic carrier streams.

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