Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 1475-1479 |
| Number of pages | 5 |
| Journal | Journal of Analytical Chemistry |
| Volume | 70 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Dec 2015 |
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Keywords
- cobalt
- colorimetric sensor
- immobilized reagent
- polymethacrylate matrix
- solid-phase spectrophotometry
ASJC Scopus subject areas
- Analytical Chemistry
Cite this
A colorimetric sensor based on a polymethacrylate matrix with immobilized 1-(2-pyridylazo)-2-naphthol for the determination of cobalt. / Gavrilenko, Nataliya Airatovna; Saranchina, N. V.; Gavrilenko, M. A.
In: Journal of Analytical Chemistry, Vol. 70, No. 12, 01.12.2015, p. 1475-1479.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A colorimetric sensor based on a polymethacrylate matrix with immobilized 1-(2-pyridylazo)-2-naphthol for the determination of cobalt
AU - Gavrilenko, Nataliya Airatovna
AU - Saranchina, N. V.
AU - Gavrilenko, M. A.
PY - 2015/12/1
Y1 - 2015/12/1
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.
AB - 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.
KW - cobalt
KW - colorimetric sensor
KW - immobilized reagent
KW - polymethacrylate matrix
KW - solid-phase spectrophotometry
UR - http://www.scopus.com/inward/record.url?scp=84947589910&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947589910&partnerID=8YFLogxK
U2 - 10.1134/S1061934815120060
DO - 10.1134/S1061934815120060
M3 - Article
AN - SCOPUS:84947589910
VL - 70
SP - 1475
EP - 1479
JO - Journal of Analytical Chemistry
JF - Journal of Analytical Chemistry
SN - 1061-9348
IS - 12
ER -