Actual problems of modern science, education and training

Yusupova Mavluda Rejabboyevna Junior scientific researcher

at the Khorezm Ma’mun Academy [e-mail]

Rakhimova Yulduz Maksudovna 1st year Master Student, Direction of Chemistry,

Faculty of Natural Sciences, Urgench State University [e-mail]

Karimova Dildor Zaripovna 3rd year student, Direction of Chemistry,
Faculty of Natural Sciences, Urgench State University [e-mail]
Annotatsiya: Ushbu maqolada og’ir metallardan Pb (II) ionining azo kislotali bo'yoq - Amido Black 10B bilan ligand kompleksi orqali, yangi kislotali bo'yoq birikmasi olish va immobillangan tolada metal ionini sorbsion-spektroskopik aniqlash usulining tavsifi keltirilgan. Ligand va yangi azo kompleksining xususiyatlari FT/IQ spektroskopiyasi, UV-Vis spektroskopiyasi, nur qaytarish spektroskopiyasi tahlil qilindi. Tolaga immobillangan ligandning va yangi sintez qilingan qo’rg’oshin kompleksining tuzilishi yuqorida aytib o'tilgan barcha tahlil metodlari bilan tadqiq qilindi. Pb (II) bilan azo metal kompleksining hosil bo'lishi UV-Vis spektri bilan tasdiqlandi. Turli pH muhitlarda va spektral tahlillar bilan ushbu tolaga immobillangan kompleksning nisbati izomolyar seriyalar usulida ochib berdi. Organik ligandlarning sintetik polimer tolaga immobillanish mehanizmlari, optimal sharoitlari aniqlandi va suniy aralashmalarda sinovdan o’tkazildi.
Kalit so'zlar: og’ir metallar, buffer eritmalar, UV-Vis; IQ tahlil, rang tahlili, organic reagent.
Abstract: 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 and the new azo complex were analyzed by FT/IR spectroscopy, UV-Vis spectroscopy, and reflection
spectroscopy. The structure of the ligand immobilized on the fiber and the newly synthesized lead complex was studied by all the methods of analysis mentioned above. Formation of azo metal complex with Pb (II) was confirmed by UV-Vis spectrum. The proportion of the complex immobilized on this fiber in different pH environments and by spectral analysis was revealed by the method of isomolar series. Mechanisms of immobilization of organic ligands to synthetic polymer fiber, optimal conditions were determined and tested in artificial mixtures.