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A method for the extraction and selective determination of the neutral species arsenobetaine (AsB) is proposed using electro-synthesized organic conducting polymer (OCP) films. The polymer films are used as solid phase micro-extraction (SPME) elements for the direct and specific extraction of trace levels of AsB. The separation and detection of the arsenic (As) species is attained using an HPLC-ICP-MS...
Abstract. The cation uptake and release properties of a poly(pyrrole-sulfated -cyclodextrin) (PPy-SCD) film electrode have been investigated under both open circuit and controlled potential conditions for prospective applications in electrochemically aided solid-phase microextraction (EA SPME). The EDAX and ion chromatography results show that the K+ and Na+ cation uptake is enhanced if a small negative...
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