Preparation of a Poly(2-thiopheneacetic acid) Coating on Magnetite Nanoparticles with One Single Carbon Layer (Fe3O4@1C NPs) for Selective Magnetic Solid-Phase Extraction of Canthin-6-one Alkaloids in Eurycoma longifolia

We present a facile approach for the direct attachment of cross-linked poly(2-thiopheneacetic acid) onto the surface of magnetite nanoparticles with one single carbon layer (Fe3O4@1C NPs) via self-assembly oxidative polymerization. The functional Fe3O4@1C NPs combined with poly(2-thiopheneacetic acid) [Fe3O4@1C@ poly(Th) NPs] was successfully prepared and used for magnetic solid-phase extraction (MSPE). The influence of the preparation...