Determination of γ-Terpinenes in Bunium Persicum by Voltammetric Method and GC/Mass Analysis

A new method using a glassy carbon electrode modified with gold nanoparticles (GNPS/GCE) was developed and validated for determination of γ-terpinene in Bunium Persicum (B. Persicum) oil. Voltammetric methods including cyclic voltammetry and differential pulse voltammetry were used. Cyclic voltammetry was used to investigate the redox properties of the GNPS/GCE. The peak current increased linearly with the concentration of γ-terpinene. The GNPS/GCE was then successfully used to determine the concentration of γ-terpinene in B. Persicum oil. Also B. Persicum oil constituent are identified by gas chromatography coupled with the mass detector (GC/Mass).