合成和表征了一种新的化合物(E)-4′-(4-(2-(2-萘)乙烯基)苯基)-2,2′:6′,2″-三联吡啶L.用Fe2+或Fe3+来滴定时,L的溶液(三氯甲烷和乙醇的体积比为1∶20)颜色分别从无色变成洋红色和橙红色,相应的紫外可见吸收光谱都在374和574 nm出现特征吸收峰.此外,即使存在其它过量金属阳离子时,L对Fe2+或Fe3+离子仍然表现出很强的敏感性和选择性.另外,还研究了L对Fe2+或Fe3+离子及两者共同存在时的线性检测浓度范围和最低检测极限(LOD).
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