Abstract
In the work with the application of the atomic absorption method, the peculiarities of the influence of sample preparation on the degree of extraction of heavy metals in samples of bottom sediments were analyzed. Acid, acid-microwave sample preparation and their variations were used in the study. It was found that the greatest influence of the type of sample preparation on the degree of extraction is observed for iron and manganese. For zinc, the smallest dependence of the type of sample preparation on the completeness of its extraction from bottom sediments was noted. There is an ambiguous influence of the type of sample preparation on the degree of extraction for cobalt, copper and nickel, which may be related to the peculiarities of the chemical composition of the bottom sediments.
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