| Autor: |
Tarighat, Maryam Abbasi, Mousavi, Mohammad Reza, Barghandan, Fatemeh |
| Zdroj: |
Analytical & Bioanalytical Chemistry Research (TPR); Oct2024, Vol. 11 Issue 4, p395-404, 10p |
| Abstrakt: |
A novel highly sensitive and selective electrochemical sensor with a low limit of detection and wide linear ranges for electrooxidation of adrenaline (Adr) and tryptophan (Trp) were utilized by immobilization of curcumin nanoparticles, AgNPs on MWCNTs on the glassy carbon electrode. The SEM and XRD analyses were applied for the characterization of the fabricated sensor surface. The diameter of synthesized nanoparticles was obtained at 39 to 64 nanometers using SEM analysis. The CV peak currents of Adr and Trp were linear in the range 1.0-1150 µM and 0.5-1200 µM, respectively. The detection limit was found 0.058 µM and 0.032 µM, for Adr and Trp, respectively. The fabricated nanocomposite was successfully employed to determine Adr in an adrenaline injection solution as well as Adr and Trp in a human urine sample. The calculated recovery values confirmed that electrochemical was appropriate for the precise and accurate simultaneous determination of target Adr and Trp in complex mixtures with recovery in the range of 98-103%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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