Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Assessment of Matrix Effect on the Results of the Potentiometric Determination of Antioxidant Capacity
AU - Gerasimova, E.
AU - Salimgareeva, E.
AU - Eltysheva, E.
AU - Ivanova, A.
AU - Matern, A.
N1 - The study was supported by the Russian Science Foundation, grant no. 20-13-00142, https://rscf.ru/project/20-13-00169 .
PY - 2023/12/1
Y1 - 2023/12/1
N2 - We assessed the effect of the matrix and the studied antioxidants on the results of determining antioxidant capacity by a potentiometric method. An approach is proposed on an example of a hexacyanoferrate redox system, which takes into account the impact of these factors on the establishment of an equilibrium potential in the system with reducing any result distortion. The procedure involves introducing a series of additions of the oxidized component of the redox system after its interaction with a test sample. The approach results in constructing a calibration graph against the background of the sample matrix after the completion of the reaction of the antioxidant with an oxidant with determining the value of the prelogarithmic coefficient under the experimental conditions. The procedure was tested in the determination of individual antioxidants and in the analysis of samples of complex composition (extracts of plant raw materials) using both the redox system and its oxidized component.
AB - We assessed the effect of the matrix and the studied antioxidants on the results of determining antioxidant capacity by a potentiometric method. An approach is proposed on an example of a hexacyanoferrate redox system, which takes into account the impact of these factors on the establishment of an equilibrium potential in the system with reducing any result distortion. The procedure involves introducing a series of additions of the oxidized component of the redox system after its interaction with a test sample. The approach results in constructing a calibration graph against the background of the sample matrix after the completion of the reaction of the antioxidant with an oxidant with determining the value of the prelogarithmic coefficient under the experimental conditions. The procedure was tested in the determination of individual antioxidants and in the analysis of samples of complex composition (extracts of plant raw materials) using both the redox system and its oxidized component.
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85183605805
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001156728900014
U2 - 10.1134/S1061934823120055
DO - 10.1134/S1061934823120055
M3 - Article
VL - 78
SP - 1665
EP - 1672
JO - Journal of Analytical Chemistry
JF - Journal of Analytical Chemistry
SN - 1061-9348
IS - 12
ER -
ID: 52295217