Study of the sorption capacity of enterosorbents used to correct environmentally caused microelement imbalance of residents of megacities

Objective - to conduct a comparative assessment of the sorption capacity of polymer enterosorbents and a mineral enterosorbent based on zeolite in relation to priority microelements.

Materials and methods. To determine the sorption capacity, the most widely available biopolymer enterosorbents on the consumer market (based on cellulose, pectin, alginates, chitin and chitosan) were used as objects of study. Polysaccharides were used as biopolymers, the unique property of which is the ability to absorb large amounts of water and form gels in the presence of divalent metal cations. The efficiency of using a mineral enterosorbent based on zeolite was assessed by comparing the sorption capacity. A method for assessing the efficiency of enterosorbents using solutions based on whey, as a typical biological fluid simulating the gastroduodenal contents of the human body, is proposed.

Results. The danger of constant metal intake from various sources of pollution in the territory of a megalopolis is described. To protect the body from polymetallic exposure, the use of the enterosorption method is justified - a therapeutic and preventive measure aimed at stopping the action of toxins of various origins and eliminating them from the body. The use of enterosorbents to correct the microelement imbalance of the body of a megalopolis resident in conditions of polymetallic pollution of the environment is justified. As a result of the study of the selected enterosorbents under the same conditions, it was found that the chitosan-based enterosorbent has the greatest efficiency, the second place is occupied by chitin and pectin-based enterosorbents. The rest of the studied enterosorbents have a significantly lower sorption capacity.

Conclusion. The considered mineral enterosorbent based on zeolite is a weak enterosorbent in relation to essential metals and quite effective in relation to toxic metals, for example, cadmium. That is, the drug belongs to the group of selective enterosorbents. To increase the effectiveness of its use, a combination with more effective non-selective sorption materials, such as activated carbon or chitosan, is necessary.

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