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Complex formation of heavy metals with 4-(2-pyridy-lazo)resorcinol chemically immobilized on silica gel |
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| Authors: | E. S. Yanovskaya V. A. Kuzovenko V. A. Tertykh O. Yu. Kichkiruk |
| Affiliation: | (1) Shevchenko National University, Kiev, Vladimirskaya ul. 64, Kiev, 252017, Ukraine;(2) Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Kiev, Ukraine;(3) Franko State University, Zhitomir, Ukraine |
| Abstract: | The complexing properties of modified silica with 4-(2-pyridylazo)resorcinol covalently immobilized by the Mannich reaction are studied with respect to heavy metals. This adsorbent can be used for the preconcentration of heavy metal ions due to its satisfactory kinetic characteristics. The structures of the heavy metal complexes with 4-(2-pyridylazo)resorcinol immobilized on the silica gel surface are studied by ESR and diffuse reflectance spectroscopy. |
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