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(A) Schematic illustration of the preparation of core–shell Fe3O4/Au magnetic nanocomposites and the electrochemical oxidative desorption process of thiocholine. (B) Schematic illustration of the measurement of AChE activity via the reactivation from an OP-exposed sample. (C) Parallel measurement of AChE activity in a postexposure sample with and without reactivation. Reprinted from ref (153). Copyright 2013 American Chemical Society.
