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Three types of hydrophobic surfactants with one, two and three C18-alkyl chains, including octadecyltrimethylammonium bromide (OTMA), dioctadecyldimethylammonium bromide (DODMA) and trioctadecylmethylammonium bromide (TOMA), were used to construct sensing films for tetrabromobisphenol A (TBBPA). In pH 4.6 acetate buffer, an oxidation peak with low height is observed for TBBPA on the surface of glassy...
In this paper, reduced carboxylic graphene/palladium nanoparticles (rGN-COOH/PdNPs) modified ultramicroelectrode array (UMEA) was investigated and applied in electrochemical determination of biochemical oxygen demand (BOD). The UMEAs were fabricated by micro electro-mechanical system technique. The sensitive film of rGN-COOH/PdNPs was prepared by self-assembling of carboxylic graphene (GN-COOH), electroreducing...
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