A glassy carbon electrode modified based on molybdenum disulfide for determination of folic acid in the real samples

Alizadeh M., Mehmandoust M., Nodrat O., Salmanpour S., ERK N.

JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION, vol.15, no.6, pp.5622-5629, 2021 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 6
  • Publication Date: 2021
  • Doi Number: 10.1007/s11694-021-01128-w
  • Journal Name: JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, CAB Abstracts, Compendex, Food Science & Technology Abstracts, Veterinary Science Database
  • Page Numbers: pp.5622-5629
  • Keywords: Folic acid, Molybdenum disulfide, Electrochemical monitoring, Chronoamperometry, Real samples, ELECTROCHEMICAL SENSOR, VOLTAMMETRIC DETERMINATION, IONIC LIQUID, PASTE ELECTRODE, ASCORBIC-ACID, QUANTUM DOTS, URIC-ACID, FOOD, NANOCOMPOSITE, TABLETS
  • Ankara University Affiliated: Yes

Abstract

In the present study, the electrochemical behavior of Folic acid (FA) on the glassy carbon electrode modified with 2D-MoS2 nanosheets has been investigated utilizing differential pulse voltammetry (DPV), cyclic voltammetry (CV), and chronoamperometric techniques at pH 6.0 Britton-Robinson buffer. The experimental conditions, including the pH, scan rate, were optimized. Under the optimized experimental conditions, to determine the selectivity and sensitivity of FA, the DPV procedure was conducted in the linear dynamic range from 0.06 to 1.16 to 1.16-24.3 mu M with a detection limit of 32.0 nM. The 2D-MoS2 nanoparticle was synthesized and characterized by EDX and SEM methods. The proposed modified electrode offered an outstanding electrocatalytic activity towards the oxidation of FA. The FA detection successfully validated the analytical reliability of 2D-MoS2/GCE in the food samples with acceptable recoveries at the range of 97.1 and 103.1%. Based on the results, it can be speculated that 2D-MoS2/GCE can be used as an alternative analytical instrument to determine FA in real samples.