A two-dimensional (2D) Sb-modified screen-printed carbon nanofibers electrode (2D Sbexf-SPCNFE) was developed to improve the stripping voltammetric determination of Cd(II) and Pb(II), taking advantage synergistic effect between two nanomaterials. The surface morphology 2D Sbexf-SPCNFE investigated by scanning electron microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy. analyti...

A simple procedure for the voltammetric detection of antioxidative activity of plant extracts based on the protection from DNA damage at the electrode surface is reported. A disposable electrochemical DNA biosensor fabricated as a carbon-based screen-printed electrode modified by a surface layer of the calf thymus double stranded (ds) DNA was used as a working electrode in combination with a si...

Fabrication and electrochemical characterization of disposable working electrodes/transducers of electrochemical sensors is described in this work. The aim was to find the best electrochemical properties of screen-printed electrode substrates modified with multiwalled carbon nanotubes (MWCNTs) based active layers. Two types of platinum electrode contacts were investigated and the suitable thick...

Palm oil is one of the major oils and fats produced in world today. The quality palm crucial to be investigated, indices free fatty acid (FFA) content. Therefore, this study, an electrochemical approach for determination FFA has been explored as alternative replace conventional method (titration method). was developed based on electrochemically reduced graphene oxide (rGO) coupled with gold nan...