A new synthesized molecular receptor, 2,2'-(ethane-1,2-diylbis((2-(azulen-2-ylamino)-2-oxoethyl)azanediyl))diacetic acid (L) has been used as building block for the development of new colorimetric and electrochemical sensors for metal ions complexation. The monomer L shows a high selectivity towards mercury ions among other cations, as highlighted by naked eye and UV–Vis spectra. The oxidative electropolymerization of L on glassy carbon electrodes lead to complexing polyL coated electrodes. They have been characterized by electrochemical techniques, their surface morphology and topography being evaluated by scanning electron microscopy and atomic force microscopy. These new modified electrodes show the ability to complex metal ions using chemical preconcentration-anodic stripping voltammetry technique.

一种新的合成分子受体2,2'-（乙烷-1,2-二基双（（2-（azulen-2-基氨基）-2-氧代乙基）氮杂二基））二乙酸（L）被用作开发了用于金属离子络合的新型比色和电化学传感器。单体L对汞离子以及其他阳离子具有很高的选择性，如肉眼和UV-Vis光谱所突出显示的那样。L在玻璃碳电极上的氧化电聚合导致络合聚L涂层电极。它们已通过电化学技术进行了表征，其表面形态和形貌通过扫描电子显微镜和原子力显微镜进行了评估。这些新的修饰电极显示了使用化学预浓缩-阳极溶出伏安法技术络合金属离子的能力。