Highly Ordered Binary Assembly of Silica Mesochannels and Surfactant Micelles for Extraction and Electrochemical Analysis of Trace Nitroaromatic Explosives and Pesticides
作者： Fei Yan , Yayun He , Longhua Ding , Bin Su
DOI: 10.1021/ACS.ANALCHEM.5B00433
关键词: Bromide 、 Chemistry 、 Adsorption 、 Pulmonary surfactant 、 Micelle 、 Organic chemistry 、 Extraction (chemistry) 、 Indium tin oxide 、 Chemical engineering 、 Hydrophobic effect 、 Aqueous solution
摘要: The rapid and sensitive detection of nitroaromatic compounds is great significance for human health, the environment, public security. present work reports on extraction electrochemical analysis trace compounds, such as explosives organophosphate pesticides (OPs), using indium tin oxide (ITO) electrodes modified with a highly ordered aligned binary assembly silica mesochannels micelles (BASMM). With pore diameter ca. 2–3 nm, (SMs) perpendicularly oriented to ITO electrode surface can provide hard robust supports confine soft cylindrical formed by aggregation cationic surfactants, namely, cetyltrimethylammonium bromide (CTAB). Due organized self-assembly hydrocarbon tails CTAB each micelle has hydrophobic core, which acts an excellent adsorbent preconcentration from aqueous solutions via effect...
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