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MWCNTs-Ionic Liquids-Ionophore-Graphite Nanocomposite Based Sensor for Selective Determination of Ytterbium(III) Ion

机译:MWCNTs-离子液体-离子载体-石墨纳米复合材料为基础的传感器,用于选择性测定Determination(III)离子

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Fluorescence studies in acetonitrile solution proved a strong interaction between N'-(1- 3+ oxoacenaphthylen-2(1H)-ylidene) furan-2-carbohydrazide (L) with Yb ions in comparison with otherlanthanide ions. Thus, L can be used as a suitable ionophore in construction of the Yb3+ potentiometricsensor. To have an electrode with enhanced mechanical resistant in real samples, L was used as asensing material in new composite carbon paste electrode. The carbon paste were made based on a newnano-composite including multi-wall carbon nanotube (MWCNT), and room temperature ionic liquid,1-n-butyl-3-methylimidazolium tetrafluoroborate [bmim]BF4. The nano-composite electrode showedbetter sensitivity, selectivity, response time, response stability and lifetime in comparison with typicalcarbon paste electrodes.
机译:乙腈溶液中的荧光研究证明,与其他镧系元素离子相比,N'-(1-3 +氧代ena基-2(1H)-亚烷基)呋喃-2-碳酰肼(L)与Yb离子之间具有很强的相互作用。因此,在Yb3 +电位传感器的构造中,L可用作合适的离子载体。为了使电极在实际样品中具有增强的机械耐受性,L被用作新型复合碳糊电极中的辅助材料。所述碳糊基于包括多壁碳纳米管(MWCNT)和室温离子液体1-氟正丁基-3-甲基咪唑四氟硼酸酯[bmim] BF4的新型纳米复合材料制成。与典型的碳糊电极相比,纳米复合电极显示出更好的灵敏度,选择性,响应时间,响应稳定性和寿命。

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