آنالیز الکتروشیمیایی بنتازون باقیمانده در عصاره گیاه مریم گلی با استفاده از الکترود اصلاح شده با ZnFe2O4 نشسته برروی نانوذرات گرافن

Essential oil of bentazon- treated plants were extracted and herbicide content analyzed by electrochemical method. For this propose, carbon paste electrode was modified using ZnFe2O4 anchored on reduced graphene oxide which synthesized by solvothermal approach. The nature and morphology of nanoparticles were characterized using XRD, FT-IR and Fe- SEM image. Under optimal experimental condition, modified electrode produces powerful oxidation signal for bentazon at +0.95 V (vs. Ag/AgCl). The anodic current was increased linearly with bentazon concentration in the range of 0.1 -20.0 µmol L-1 with a detection limit of 0.07 µmol L-1. The practical usage of modified electrode was evaluated by electro analysis of extracted bentzon residues at three applied doses which revealed reasonable results.

کلیدواژه ها:

Bentazon Residual ، Electroanalysis ، ZnFe2O4 / Reduced Graphene Oxide ، Carbon Paste Electrode ، Essential Oil Samples