FIELD: chemistry.
SUBSTANCE: invention relates to the analytical chemistry of ecosystem components. Method of extraction of inorganic forms of zinc, cadmium, lead and copper from solid samples, which consists in extracting inorganic forms of zinc, cadmium, lead and copper from the solid phase of a natural object into the liquid phase of an ionic liquid, characterized in that for the extraction of zinc, cadmium, lead and copper from a solid sample of a natural object, to an accurate sample of the sample placed in a dry clean tube, add 1.000 g of an equimolar melt of salicylate thiopiriny and 1.0 ml of ethyl alcohol, thoroughly mixed with a glass rod, heated to a temperature of 40–50 °C for 15–20 minutes, stirring periodically with a glass rod, cool 10 minutes, and then add 2.0 ml of ethyl alcohol, mix and extract the inorganic forms of zinc, cadmium, lead and copper to analyze the content of zinc, cadmium, lead and copper.
EFFECT: efficient extraction of inorganic forms of zinc, cadmium, lead and copper from the solid phase of a natural object.
1 cl, 2 tbl
