Flow injection analysis as a tool for studying polymer modified electrodes

Flow injection analysis with a thin-layer amperometric detector is used for elucidating the transport properties of polymer-coated electrodes. The permeation, selectivity and dynamic properties of films such as cellulose-acetate, Nafion, polypyrrole, polyaniline or polyvinylpyridine are thus explored. The advantages of the flow injection manifold for this task are discussed. Equations are derived to support the discussion.