| 초록 |
A variety of techniques for the determination of heavy metal ions have been investigated intensively in the literature including spectroscopy, chromatography, electrophoresis, and fluorescence detection.[1,2] Sensing technologies for cations have become very important for both biological and environmental applications. in response, a large class of cation sensors based on coordination chemistry has been developed. Several are selective for both alkali and alkaline earth metals, such as lithium, sodium, potassium and zinc, in which detection is necessary to monitor and regulate a number of cellular functions. Heavy metal cations such a lead and mercury have also been studied, due to their deleterious effects on biological system. Azobenzene based nanomaterials successfully detected Cs, Cu, Fe(II), Fe(III) and Sn ion. The observed color was changed from red to violet. |
