A highly sensitive and quick voltammetric sensor based on CuFe2O4 nanoparticle/room temperature ionic liquids
carbon paste electrode (CuFe2O4/ILs/CPE) is proposed for the determination of adrenaline in the biological
condition (pH = 7.4). CuFe2O4 are nanoparticles synthesized by co-precipitation method and characterized
with different methods such as transmission electron microscopy (TEM) and X-ray diffraction (XRD). In continuous,
we study application of the CuFe2O4 nanoparticle for the preparation of carbon paste electrode modified
with 1,3-dipropylimidazolium bromide as a suitable and high conductive binder. At the best condition
(pH 7.4), the peak currents of square wave voltammograms (SWV) of adrenaline increased linearly with
its concentration in the ranges of 0.1–400 μM. The detection limit for adrenaline was 0.07 μM. The modified
sensor has been successfully applied for the assay of adrenaline in biological and pharmaceutical samples
such as urine and injection in comparison with other method.
