Open AccessСпектральные зависимости оптического поглощения иммобилизованного в пленке Родамина Б от концентрации ионов меди в воде
Author(s) -
И.Ю. Денисюк,
Е.Н. Галашева,
М.В. Успенская,
М.И. Фокина
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.11.50185.140-20
Subject(s) - rhodamine b , copper , rhodamine , impurity , polymer , absorption (acoustics) , ion , chemistry , alcohol , materials science , chemical engineering , nuclear chemistry , organic chemistry , fluorescence , optics , catalysis , composite material , physics , photocatalysis , engineering
The influence of copper ion concentration on the absorption spectrum of Rhodamine B in molecular form in an alcohol solution and immobilized in a polymer hydrogel film was studied. The sensitivity of the system to the presence of copper ions at a concentration of 0.1 mg/l, sufficient for practical use, is shown. The insolubility of Rhodamine B in water when it is immobilized in the volume of a photopolymerizing hydrogel film makes it possible to create a chemosensor that is stable at long exposures and can sense ultra-small concentrations of the analyzed impurity.