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. A large class of cation sensors based on coordination chemistry has been developed. Several are selective for both alkali and, potassium, zinc, calcium and magnesium, in which detection is necessary to monitor and regulate a number of cellular functions. In addition, there are several other environmental concerns were prepared by diazotization reaction. The molecular structures of azobenzene were analyzed by means of Fourier transform nuclear magnetic resonance (FT-NMR), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscope(FE-SEM) and UV-visible spectroscopy. Azobenzene based nanomaterials successfully detected Cs, Cu, Fe(II), Fe(III) and Sn ion. The observed color was changed from red to violet. |