Determination of the antioxidant propyl gallate in meat by using a screen-printed electrode modified with CoSe2 nanoparticles and reduced graphene oxide.
Shen-Ming ChenShaktivel ManavalanUmamaheswari RajajiMani GovindasamyTse-Wei ChenM Ajmal AliAlaa Kazhem AlnakhliFahad M A Al-HemaidM S ElshikhPublished in: Mikrochimica acta (2018)
A voltammetric sensor is described for the quantitation of propyl gallate (PG). A screen-printed carbon electrode (SPCE) was modified with reduced graphene sheets that were decorated with cobalt diselenide nanoparticles (CoSe2@rGO). The material was hydrothermally prepared and characterized by several spectroscopic techniques. The modified SPCE displays excellent electrocatalytic ability towards PG. Differential pulse voltammetry, with a peak voltage at 0.34 V (vs. Ag/AgCl) has a sensitivity of 12.84 μA·μM-1·cm-2 and a detection limit as low as 16 nM. The method is reproducible, selective, and practical. This method was applied to the determination of PG in spiked meat samples, and the result showed an adequate recovery. Graphical abstract Schematic of a new method for fast and sensitive electrochemical determination of the food additive propyl gallate in meat.
Keyphrases
- reduced graphene oxide
- gold nanoparticles
- solid phase extraction
- molecularly imprinted
- carbon nanotubes
- high throughput
- liquid chromatography tandem mass spectrometry
- oxidative stress
- blood pressure
- mass spectrometry
- walled carbon nanotubes
- molecular docking
- liquid chromatography
- tandem mass spectrometry
- simultaneous determination
- low cost
- quantum dots
- anti inflammatory
- photodynamic therapy
- risk assessment
- highly efficient
- loop mediated isothermal amplification
- sensitive detection
- climate change
- single cell