Determination of Cysteine by Diffuse Reflectance Spectroscopy by Its Influence on the Formation of Gold Nanocomposites Based on Polyurethane Foam
Publication type: Journal Article
Publication date: 2020-07-07
scimago Q3
wos Q4
SJR: 0.252
CiteScore: 1.9
Impact factor: 1.1
ISSN: 10619348, 16083199
Analytical Chemistry
Abstract
Abstract A method is proposed for the determination of cysteine in an aqueous solution by its effect on the formation of gold nanoparticles on the surface of polyurethane foams. The method is based on the interaction of in situ formed gold nanoparticles with cysteine, which results in their stabilization in solution and in a decrease in the color intensity of the nanocomposite detected by diffuse reflectance spectroscopy. The effect of the concentration of the precursor, aurichlorohydric acid, contact time of phases, and the pH of the solution on the sensitivity of cysteine determination is studied. Under the selected conditions, the limit of detection for cysteine was 0.36 μg/mL. A possibility of using the proposed method for the determination of cysteine in brewer’s yeast is demonstrated.
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Isachenko A. I. et al. Determination of Cysteine by Diffuse Reflectance Spectroscopy by Its Influence on the Formation of Gold Nanocomposites Based on Polyurethane Foam // Journal of Analytical Chemistry. 2020. Vol. 75. No. 7. pp. 890-895.
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Isachenko A. I., Apyari V. V., Volkov P. A., Dmitrienko S. G., Zolotov Y. Determination of Cysteine by Diffuse Reflectance Spectroscopy by Its Influence on the Formation of Gold Nanocomposites Based on Polyurethane Foam // Journal of Analytical Chemistry. 2020. Vol. 75. No. 7. pp. 890-895.
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TY - JOUR
DO - 10.1134/S1061934820070102
UR - http://link.springer.com/10.1134/S1061934820070102
TI - Determination of Cysteine by Diffuse Reflectance Spectroscopy by Its Influence on the Formation of Gold Nanocomposites Based on Polyurethane Foam
T2 - Journal of Analytical Chemistry
AU - Isachenko, A I
AU - Apyari, V V
AU - Volkov, P. A.
AU - Dmitrienko, S G
AU - Zolotov, Yu.A
PY - 2020
DA - 2020/07/07
PB - Pleiades Publishing
SP - 890-895
IS - 7
VL - 75
SN - 1061-9348
SN - 1608-3199
ER -
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@article{2020_Isachenko,
author = {A I Isachenko and V V Apyari and P. A. Volkov and S G Dmitrienko and Yu.A Zolotov},
title = {Determination of Cysteine by Diffuse Reflectance Spectroscopy by Its Influence on the Formation of Gold Nanocomposites Based on Polyurethane Foam},
journal = {Journal of Analytical Chemistry},
year = {2020},
volume = {75},
publisher = {Pleiades Publishing},
month = {jul},
url = {http://link.springer.com/10.1134/S1061934820070102},
number = {7},
pages = {890--895},
doi = {10.1134/S1061934820070102}
}
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Isachenko, A. I., et al. “Determination of Cysteine by Diffuse Reflectance Spectroscopy by Its Influence on the Formation of Gold Nanocomposites Based on Polyurethane Foam.” Journal of Analytical Chemistry, vol. 75, no. 7, Jul. 2020, pp. 890-895. http://link.springer.com/10.1134/S1061934820070102.