TY  - SER
AU  - Gavrilenko,Nataliya A.
AU  - Saranchina,Nadezhda V.
AU  - Gavrilenko,Mikhail A.
TI  - Colorimetric sensor based on a polymethacrylate matrix with immobilized 1-(2-pyridylazo)- 2-naphthol for the determination of cobalt
KW  - кобальт
KW  - колориметрические сенсоры
KW  - твердофазная спектрофотометрия
KW  - полиметакрилатные матрицы
KW  - статьи в журналах
N1  - Библиогр.: 21 назв
N2  - A colorimetric sensor is proposed for the determination of cobalt. It is prepared by immobilizing 1-(2-pyridylazo)-2-naphthol (PAN) in an optically transparent polymethacrylate matrix. The conditions for determining cobalt by the proposed colorimetric sensor are found in the study of the complexation of cobalt with a PAN-modified polymethacrylate matrix. The determination is based on the interaction of the sensor with a cobalt solution at pH 4 for 5 min, followed by the measurement of absorbance at 620 nm. The sensor ensures the determination of 0.05–0.50 mg/L of cobalt with the detection limit 0.03 mg/L. It is demonstrated that the sensor can be used for the determination of cobalt in the Cyanocobalamin medical preparation and potable water
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000548675
ER  -