%0 Journal Article %T Development of Single Walled Carbon Nanotube-Molybdenum Disulfide Nanocomposite/poly-ethylene Glycol Modified Carbon Paste Electrode as an Electrochemical Sensor for the Investigation of Sulfadiazine in Biological Samples %J Analytical and Bioanalytical Electrochemistry %I Analytical and Bioanalytical Electrochemistry is an international scientific journal, which is published online every 3 months (since 2009), every 2 months (since 2011) and monthly (since 2018) by Center of Excellence in Electrochemistry, University of Tehran %Z - %A Mallikarjunaiah Vinay, Matad %A Virupakshappa Basavarajappa, Kempugonapla %A Manjunatha, Puttaiah %A Thimmappa Purushothama, Hanumasagara %A Onkarappa Yathisha, Rangapura %A Arthoba Nayaka, Yanjerappa %D 2020 %\ 02/01/2020 %V 12 %N 2 %P 155-167 %! Development of Single Walled Carbon Nanotube-Molybdenum Disulfide Nanocomposite/poly-ethylene Glycol Modified Carbon Paste Electrode as an Electrochemical Sensor for the Investigation of Sulfadiazine in Biological Samples %K Carbon paste electrode %K Cyclic voltammetry nanotubes %K nanoparticles %K Sulfadiazine %R %X A rapid electrochemical analysis of sulfadiazine (SFZ) has been carried out by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods by employing a sensitive single walled carbon nanotube-molybdenum disulfide nanocomposite/poly ethylene glycol modified carbon paste electrode (SWCNT-MoS2/PEG/CPE). The SFZ shows anodic peak potential at 0.94 V (vs. Ag/AgCl) in 0.1 M PBS of pH 7.0. The SFZ has been examined at different scan rate from 50 to 300 mVs-1 in 0.1 M PBS of pH 7.0 and the nature of mass transfer route is diffusion-controlled process. The different pH from 5.6 to 8.0 was analyzed at SFZ and obtained the slope value 0.063 proves the equal number of electrons and protons were involved in the reaction. In DPV mode LOD of SFZ in the linear range of 2-90 μM was found to be 1.69 μM. The prepared electrode was examined by electrochemical impedance spectroscopy (EIS) using 5 mM K3[Fe(CN)6] in 0.1 M KCl. The effective surface area of SWCNT-MoS2/PEG/CPE was found to be 0.262 cm2. This method could be successfully employed to determine the concentration of SFZ in biological fluids. %U https://www.abechem.com/article_38583_341cd94552eb3178df0eadd7add07490.pdf