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The preparation, characterization and analytical applications of gold electrodes modified with ω-mercapto alkyl/aryl sulfonates are described. The devices resulted effective for the determination of free and labile Pb(II) in water samples by anodic stripping voltammetry (E dep =−600mV) and in particular 2-mercaptobenzimidazole-5-sulfonate (MBIS) offered the best performances with detection...
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