Cistanche (Orobanchaceae) species are perennial parasitic plants, mainly distributed in arid and hot deserts. Cistanche plants are called “Desert ginseng”....

This article presents a description of the method of obtaining a new acidic dye compound and sorption-spectroscopic detection of the metal ion in the immobilized fiber through the ligand complex of Pb (II) ion from heavy metals with an azo acid dye - Amido Black 10B. The properties of the ligand...

The article shows the possibility of using sodium 4-amino-5-hydroxy-3 - ((e) - (4-nitrophenyl) diazenyl) - 6 - ((e) -phenyldiazenyl) naphthalene2,7-isulfonate, immobilized on polyacrylonitrile fiber PPD, as a reagent for the determination of lead ions. The optimal conditions for immobilization and...