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首页> 外文期刊>Journal of the Brazilian Chemical Society >Novel neodymium(III) membrane sensor based on N-(2-Furylmethylene)pyridine-2,6-diamine
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Novel neodymium(III) membrane sensor based on N-(2-Furylmethylene)pyridine-2,6-diamine

机译:基于N-(2-呋喃基亚甲基)吡啶-2,6-二胺的新型钕(III)膜传感器

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We found that N-(2-furylmethylene) pyridine-2,6-diamine (FPD) can be used as an excellent ionophore in the construction of a novel neodymium(III) poly(vinyl chloride) (PVC)-based membrane sensor. A membrane composition of 33% poly (vinyl chloride), 59% nitrobenzene (NB), 6% FPD, and 2% potassium tetrakis (p-chlorophenyl) borate (KTpClPB), led to the optimum results. The Nd(III)-selectivity of the sensor, is relatively good in comparison to a large number of lanthanide metal ions, such as lanthanum, cerium, gadolinium, samarium, terbium, europium, dysprosium, and ytterbium ions. The sensor response is Nernstian (with slope of 19.6±0.3 mV per decade for the triply charged ion) over a wide concentration range (1.0 ×10-5 to 1.0 × 10-2 mol L-1) with a detection limit of 7.0 × 10-6 mol L-1, a relatively fast response time, in the whole concentration range (
机译:我们发现N-(2-呋喃基亚甲基)吡啶-2,6-二胺(FPD)可以用作构建新型钕(III)聚氯乙烯(PVC)膜传感器的优异离子载体。由33%的聚氯乙烯,59%的硝基苯(NB),6%的FPD和2%的四(对氯苯基)硼酸钾(KTpClPB)组成的膜组成导致了最佳结果。与大量镧系金属离子(例如镧,铈、,、,、,、,、,和and离子)相比,传感器的Nd(III)选择性相对较好。传感器响应在很宽的浓度范围(1.0×10-5至1.0×10-2 mol L-1)范围内为能斯特(三电荷离子的坡度为19.6±0.3 mV /十倍),检测极限为7.0× 10-6 mol L-1,在整个浓度范围内响应时间相对较快(

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