Аннотация:A modified sorbent by immobilization of antipyrine-2COOH on highly basic anion exchanger was ыynthesized. The sorption, complexation and kinetic characteristics of the modified chelating sorbent to ions of copper, zinc and cadmium are studied. Thermogravimetric analysis of the modified sorbent is carried out. Selective adsorption of various ions to ions of copper, zinc and cadmium was investigated. The technique of group concentration and determination of heavy metals in sea water was developed. Keywords : modified sorbent, copper, zinc, cadmium, complexation, sorption, kinetics. (Russian) DOI: http://dx.doi.org/10.15826/analitika.2013.17.1.012 R . Z . Zeynalov , S . D . Tatayeva , N . I . Atayeva Dagestan State University, Russian Federation , the Republic of Dagestan, Makhachkala