CELLULOSE SORBENTS MODIFIED THIOSEMICARBAZONE THIOPHENE-2-CARBALDEHYDE, THIOSEMICARBAZONE 5-NITROTIOFEN-2-CARBALDEHYDE - FOR SOLID-PHASE EXTRACTION AND DETERMINATION OF HEAVY METALS
The possibility of using cellulose sorption materials in analytical practice for the concentration and detection of heavy metals on surface-fixed complexing agents (thiosemicarbazone thiophene-2-carbaldehyde, thiosemicarbazone 5-nitrotiofen-2-carbaldehyde) is investigated. The effect of different physical and chemical factors on the ability of metal determination in thin-layer concentrates is studied.