ELECTROCHEMICAL DETERMINATION OF LOW MOLECULAR WEIGHT ANTIOXIDANTS IN SERUM SAMPLES

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F12%3APU126895" target="_blank" >RIV/00216305:26620/12:PU126895 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
ELECTROCHEMICAL DETERMINATION OF LOW MOLECULAR WEIGHT ANTIOXIDANTS IN SERUM SAMPLES
Original language description
The objective of the experiment was to establish and optimize an electrochemical method of low molecular weight antioxidants assay using square wave voltammetry performed on screen printed sensors with carbon working electrodes. The potential range of square wave voltammetry was 0 - 1.1 V. The optimal values for the assay, potential step 5 mV, amplitude 5 mV, frequency 1 Hz and volume of sample 20 µl, were found. The linearity and sensitivity of the method were verified by standard antioxidants - ascorbic acid, trolox, N-acetylcysteine and melatonin. The suitability for low molecular weight antioxidants` assay in human serum samples was confirmed by standard ferric reducing antioxidant power test (FRAP). Limits of detection were 0.3 mmol/l for ascorbic acid, 0.04 mmol/l for melatonin, 0.03 mmol/l for trolox, and 0.07 mmol/l for N-acetylcysteine. There was apparent a strong correlation between square wave voltammetry and the FRAP value as the correlation coefficient was 0.9778.
Czech name
—
Czech description
—

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)