Abstract:

Some metals are needed in a very small amount in the regular functions of living organisms, so the presence of these metals is increasingly important (bone, zinc, iron, etc.). Like it). But some of them are poisonous and these poisonous metals are considered dangerous for the environment and food in which people live. These metals (bone, cider, cadmium, arsenic, zinc, iron, baker, manganese, chromium) can be harmful due to their conversion into toxic components in high skin cells. Therefore, in modern analytical chemistry, there is a tendency to develop simple, environmentally safe, sensitive and selective methods for the determination of metal works. Due to the low skin shrinking of metal, it usually requires a separation and enrichment technique. One of the most commonly used techniques is the solid phase extraction (SPE) technique. New studies in the field of solid phase extraction involve the synthesis of good-performance new solid phases, such as acid and base resistance, analytical selectivity, wide surface area and high adsorption capacity. Because the maximum adsorption capabilities of graphene (G) and graphene oxide (GO) are much higher than previously, G and GO nanobacks can be successfully applied in the classic SPE for both organic compounds and metal species.

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